Official and Legal Welsh

In Brief

Official and legal Welsh is a register—a variety chosen for a particular setting—rather than a separate grammar. It often foregrounds the rule or action through impersonal verbs such as gwrthodir “is refused,” expresses duties precisely with rhaid, and organizes long provisions with fixed connectors such as yn unol â “in accordance with.” The aim is not maximum formality, but language that is exact, consistent, and suitable for its legal effect.

Overview

You will meet official Welsh in legislation, regulations, council documents, application decisions, public notices, policies, and correspondence from public bodies. At C2, the challenge is rarely understanding one unfamiliar ending. It is learning how familiar resources—inflected verbs, verbal nouns, relative clauses, and prepositions—work together to control agency, obligation, scope, and reference.

Legal and administrative texts often focus on what is authorized, required, or decided, not on the individual who performs the action. This helps explain the frequency of impersonal forms such as hysbysir “notice is given” and caniateir “is permitted.” A nominal style also occurs: actions are packaged as noun-like expressions, which makes them easier to define and refer back to. In Welsh, the verbal noun (the dictionary form of a verb, which can function like an English infinitive or an action noun) is central to this style.

Formality does not excuse obscurity. Modern public-facing Welsh may prefer a direct sentence such as Rhaid i chi gyflwyno'r ffurflen erbyn dydd Gwener “You must submit the form by Friday” over a heavier impersonal version. Skilled register control means recognizing traditional formulas, interpreting them accurately, and choosing a plainer alternative when the document and audience allow it.

How It Works

1. Impersonal verbs put the action first

An impersonal verb does not name a grammatical subject—the person or thing presented as doing the action. English normally needs a passive construction with be: “the application is refused.” Welsh can place an inflected impersonal verb directly before the affected noun:

Welsh pattern	English	What it highlights
Gwrthodir y cais.	The application is refused.	The decision, not the decision-maker
Cyhoeddwyd yr adroddiad.	The report was published.	A completed past action
Caniateir i'r ymgeisydd apelio.	The applicant is permitted to appeal.	Permission
Gwneir y penderfyniad yfory.	The decision will be made tomorrow.	The procedure or result

The endings encode tense as well as impersonality. In formal prose, -ir commonly gives a present or future reading, while -wyd marks the past. The stem may change, so forms should be learned in context rather than made by attaching an ending mechanically. Frequent irregular or highly conventional forms include gwneir “is made/done” from gwneud and ceir “is found/obtained; there is/are” from cael.

An agent can be added with gan “by” when it matters: Gwrthodwyd y cais gan y pwyllgor “The application was refused by the committee.” If the agent is central throughout a public information text, however, a direct active sentence may be clearer: Gwrthododd y pwyllgor y cais “The committee refused the application.”

Welsh also has a periphrastic passive—a construction made from several words—using cael plus a possessive pattern: Mae'r cais yn cael ei ystyried “The application is being considered.” This is normal Welsh, but the concise impersonal form Ystyrir y cais is especially characteristic of formal drafting. Do not combine the two constructions.

2. Duties, permissions, and prohibitions require exact wording

English legal shall is notoriously ambiguous: it can express a duty, a future consequence, or simply what a provision does. Welsh should represent the intended force, not copy the English word automatically.

Welsh form	Core force	Typical English rendering
rhaid i ... + verbal noun	binding necessity or duty	must; is required to
caiff ... + verbal noun	permission, entitlement, or a formally framed event	may; is entitled to; will be ...
ni chaiff ... + verbal noun	prohibition	must not; may not
caniateir i ... + verbal noun	impersonal permission	is permitted to
dylai ... + verbal noun	recommendation or expected conduct	should

With rhaid, the person under the duty follows i: Rhaid i'r ceisydd gyflwyno tystiolaeth. The verbal noun frequently undergoes soft mutation here, so cyflwyno appears as gyflwyno. With caiff, the actor is normally the grammatical subject: Caiff y ceisydd apelio “The applicant may appeal.” Context must decide whether caiff expresses permission or belongs to a passive-like construction: Caiff y cais ei ystyried means “The application will be/is to be considered,” not “The application may consider itself.”

Dylai normally means “should.” Replacing rhaid with dylai can turn a binding requirement into advice, so this is a legal meaning difference, not merely a stylistic one.

3. Nominalization packages actions as concepts

A nominalization turns an action or quality into something noun-like so that it can be defined, counted, modified, or referred to later. Official Welsh often uses ordinary nouns such as penderfyniad “decision,” darpariaeth “provision,” caniatâd “permission,” and gofyniad “requirement.” It also uses verbal nouns such as cyflwyno “submitting/to submit,” gweithredu “implementing/to implement,” and cydymffurfio “complying/to comply.”

Compare the direct and packaged versions:

• Rhaid i'r awdurdod weithredu'r cynllun. — “The authority must implement the plan.”
• Mae gweithredu'r cynllun yn gyfrifoldeb ar yr awdurdod. — “Implementation of the plan is the authority's responsibility.”

The second version makes gweithredu'r cynllun available as the topic, but it is not automatically better. Long chains of abstract nouns can hide who must do what. If accountability matters, restore a person or body with rhaid i ... or an active verb.

4. Connectors define legal relationships

Formal connectors do more than make prose sound elevated. They identify authority, purpose, conditions, exceptions, and scope.

Welsh connector	English meaning	Function
yn unol â	in accordance with	Links an action to an authority or rule
yn ddarostyngedig i	subject to	Makes one rule dependent on another
at ddibenion ...	for the purposes of ...	Limits a definition or rule to a stated context
er mwyn	in order to	States purpose
gan fod	because; since	Gives a reason
oni bai bod ...	unless ...	Introduces an exception or negative condition
i'r graddau y mae ...	to the extent that ...	Restricts scope
heb ragfarnu ...	without prejudice to ...	Preserves another rule or right

These are multiword units. Learn the preposition with the expression: yn unol â, not an improvised equivalent based on English with. Remember that a following word may mutate. In y Ddeddf “the Act,” Deddf is a feminine singular noun, so it has soft mutation after the definite article: Deddf becomes Ddeddf.

5. Subordination controls conditions and references

A subordinate clause is a clause that depends on another clause to complete its role. Legal provisions use several layers of them because a general rule may need a condition, an exception, and a time limit. The reader must identify the main proposition first:

Caiff y Cyngor estyn y cyfnod, os yw'r amgylchiadau'n cyfiawnhau hynny, ar yr amod bod y ceisydd wedi cyflwyno cais ysgrifenedig.

The main proposition is Caiff y Cyngor estyn y cyfnod “The Council may extend the period.” The two following clauses restrict that power: circumstances must justify it, and the applicant must have made a written request.

Formal Welsh also uses bo, a subjunctive form of bod “to be” used in certain dependent settings, in expressions such as fel y bo'n briodol “as may be appropriate” and pan fo angen “when necessary.” It is a compact formal resource, not a replacement for every occurrence of mae or bod.

Relative clauses—clauses that identify a noun—are essential for cross-reference:

• y person y cyfeirir ato — “the person referred to”
• y ddogfen y cyfeirir ati — “the document referred to”
• y gofynion a bennir yn yr Atodlen — “the requirements specified in the Schedule”

In the first two phrases, ato and ati are inflected forms of at “to.” They point back respectively to masculine person and feminine dogfen. This small agreement contrast is easy to miss but conspicuous in careful writing.

6. Defined terms create a local meaning

A document may assign a precise meaning to an ordinary expression:

Yn yr adran hon, ystyr “y Cyngor” yw Cyngor Sir ...

Once defined, the term must be used consistently. Capitalization and quotation conventions depend on the document's drafting style; a capital letter is not, by itself, what gives the term legal meaning. Also distinguish internal references carefully: adran is a section, is-adran a subsection, paragraff a paragraph, Atodlen a Schedule, and Deddf an Act. The exact label should match the structure of the instrument concerned.

Examples in Context

Welsh	English	Note
Hysbysir drwy hyn fod y cyfarfod wedi ei ohirio.	Notice is hereby given that the meeting has been postponed.	Conventional notice formula
Yn unol â darpariaethau'r Ddeddf, rhaid cadw'r cofnodion am bum mlynedd.	In accordance with the provisions of the Act, the records must be kept for five years.	Authority plus duty
Gwrthodir y cais am y rhesymau canlynol.	The application is refused for the following reasons.	Present impersonal decision
Cyhoeddwyd y canllawiau ar 1 Ebrill.	The guidance was published on 1 April.	Past impersonal in an official record
Rhaid i'r ceisydd gyflwyno'r dystiolaeth erbyn y dyddiad cau.	The applicant must submit the evidence by the deadline.	The duty-holder is explicit
Ni chaiff y wybodaeth ei datgelu heb ganiatâd.	The information may not be disclosed without permission.	Prohibition with a passive-like pattern
Caiff y Cyngor estyn y cyfnod mewn amgylchiadau eithriadol.	The Council may extend the period in exceptional circumstances.	Discretionary power
Caniateir i unrhyw berson gyflwyno sylwadau ysgrifenedig.	Any person is permitted to submit written representations.	Impersonal permission
At ddibenion yr adran hon, ystyr “mangre” yw unrhyw adeilad neu dir.	For the purposes of this section, “premises” means any building or land.	Definition limited to one section
Mae'r rheol hon yn ddarostyngedig i is-adran (3).	This rule is subject to subsection (3).	Internal qualification
Ni fydd y ddarpariaeth yn gymwys oni bai bod y ddau amod wedi eu bodloni.	The provision will not apply unless both conditions have been met.	Exception through oni bai bod
Ystyrir pob cais yn ôl ei amgylchiadau ei hun.	Each application is considered according to its own circumstances.	General procedure
Dyma'r ddogfen y cyfeirir ati ym mharagraff 4.	This is the document referred to in paragraph 4.	Feminine reference with ati
Daw'r Rheoliadau hyn i rym ar 1 Ionawr.	These Regulations come into force on 1 January.	Conventional commencement wording

Common Mistakes

Combining two passive patterns

• Wrong: Mae'r cais yn cael ei wrthodir.
• Right: Gwrthodir y cais. / Mae'r cais yn cael ei wrthod.
• Why: Gwrthodir is already an impersonal finite verb. The cael ei wrthod construction is a separate way of forming a passive meaning.

Translating English “shall” with one fixed Welsh form

• Wrong for a binding duty: Dylai'r ceisydd dalu'r ffi.
• Right: Rhaid i'r ceisydd dalu'r ffi.
• Why: Dylai means “should,” whereas rhaid imposes necessity. First decide whether the sentence creates a duty, gives permission, states a consequence, or describes the future.

Using the wrong preposition in a fixed connector

• Wrong: yn unol gyda'r polisi
• Right: yn unol â'r polisi
• Why: The established expression is yn unol â. Treat formal connectors as complete phrases, not word-for-word translations from English.

Missing mutation in a title or reference

• Wrong: darpariaethau'r Deddf
• Right: darpariaethau'r Ddeddf
• Why: Deddf is feminine singular. After the definite article it undergoes soft mutation to Ddeddf, even when the capital letter is retained.

Losing gender in a relative reference

• Wrong: y ddogfen y cyfeirir ato
• Right: y ddogfen y cyfeirir ati
• Why: Dogfen is feminine, so the inflected preposition referring back to it is ati. Use ato for a masculine referent such as person.

Making every official sentence impersonal

• Heavy: Gwneir cysylltiad â chi gan y swyddog cyn pen pum diwrnod.
• Clearer: Bydd y swyddog yn cysylltu â chi cyn pen pum diwrnod.
• Why: The first version is possible, but the active sentence immediately tells the reader who will act. Official does not have to mean distant.

Usage Notes

Formula, genre, and audience

Hysbysir drwy hyn fod ... is appropriate in a formal notice, but it can sound unnecessarily ceremonial in an email to one resident. Likewise, at ddibenion yr adran hon belongs naturally in definitions and provisions, not ordinary customer service writing. Match the formula to the document's function.

Administrative correspondence often combines formal precision with direct address: Rhaid i chi anfon y dogfennau atom erbyn ... This may be more useful than suppressing both parties through impersonal grammar. In a rule intended to apply generally, however, rhaid i'r ceisydd is often preferable to rhaid i chi because it identifies the legal role rather than the current reader.

Parallel bilingual texts

English can help you check the broad sense of a bilingual document, but it should not dictate Welsh syntax. Welsh impersonal forms, mutations, and verbal-noun structures need to be natural on their own terms. Nor should you automatically assume that Welsh wording is merely an informal explanation of English wording: the authoritative status of each text depends on the document and the law under which it was made. For real rights, deadlines, or liabilities, consult the official text and qualified advice rather than relying on a learner's translation.

Terminology and consistency

Choose the term used by the relevant institution or instrument and keep it stable. Near-synonyms are not always interchangeable in a defined scheme: canllawiau “guidance,” rheoliadau “regulations,” and polisi “policy” name different kinds of document. Terminology resources and an organization's approved termbase are more reliable than inventing a calque from English.

Beyond the Basics / Advanced Use

At the most advanced level, legal reading becomes an exercise in scope: exactly which words a condition, exception, negative, or modifier governs. Punctuation helps, but syntax and cross-references carry the meaning. In a long provision, mark the main verb, then attach each os “if,” oni bai “unless,” yn ddarostyngedig i “subject to,” and relative clause to the element it restricts. A fluent paraphrase is not enough if it moves an exception to a wider or narrower part of the sentence.

Pay particular attention to the contrast between a power and a duty. Caiff yr awdurdod ... may confer permission or discretion; rhaid i'r awdurdod ... imposes a requirement. Then look for constraints elsewhere: a power may be yn ddarostyngedig i another provision, exercisable only os a condition is met, or limited i'r graddau y mae something necessary. The full effect often emerges across several linked clauses.

Traditional legal pairs and inherited formulas can be useful because their interpretation is established, but repetition does not guarantee clarity. When drafting rather than reading, test whether every nominalization earns its place. Compare gwneud penderfyniad i wrthod y cais “make a decision to refuse the application” with the more direct penderfynu gwrthod y cais “decide to refuse the application.” Keep the longer expression only when the decision itself must be dated, reviewed, defined, or referred to.

Finally, distinguish translation equivalence from structural imitation. English “is deemed to be,” “hereby,” and “shall” may require different Welsh solutions in different provisions. Work from the intended legal relationship—definition, declaration, duty, permission, presumption, or future event—and then select the Welsh construction that expresses it most precisely.

Practice Tips

1. Annotate one real notice. Underline impersonal verbs, circle duty and permission markers (rhaid, caiff, ni chaiff), and box connectors. Then state who acts, what happens, and under what condition in plain English.
2. Rewrite in both directions. Turn Gwrthodir y cais into the active Mae'r pwyllgor yn gwrthod y cais, then decide which version better fits a decision letter. Do the same with cael ei ... passives and direct active sentences.
3. Build phrase cards, not isolated words. Learn yn unol â, yn ddarostyngedig i, at ddibenion, and oni bai bod with a complete sentence. Include the mutation or inflected preposition in the card so that grammar and terminology are recalled together.

Related Concepts

• Prerequisite: Inflected Verb Forms — the personal endings and concise verb system provide the foundation for recognizing formal impersonal forms.