Nominalization in Yoruba

In Brief

Yoruba can turn an action into a noun (a word that names a thing, idea, or activity), often by repeating part of a verb: jẹ “eat” becomes jíjẹ “eating,” and kà “read” becomes kíkà “reading.” Other nouns use a prefix such as à- or belong to established compounds. These forms behave as nouns, so they can be the subject or object of a sentence and can be followed by a possessor.

Overview

Nominalization means making a noun from another kind of word. In this article, the starting point is a verb: an action such as jẹ “eat,” kà “read,” or lọ “go.” The resulting noun lets you discuss the action as an activity, event, habit, or idea: jíjẹ “eating,” kíkà “reading,” and àlọ “departure.”

This B1 skill is useful whenever you want to say that doing something is good, hard, necessary, or enjoyable. English often uses an -ing form in this role, as in “Reading is important.” Yoruba does not simply attach one ending equivalent to English -ing. It uses several word-building patterns, and tones are part of those patterns.

The most productive pattern for an action or activity is partial reduplication: part of the verb is copied and placed before it. Some event nouns instead use a prefix such as à-, while many familiar nouns are fixed compounds that learners should acquire as complete words. These groups are related, but they are not freely interchangeable.

How It Works

The main pattern: partial reduplication

For many verbs, Yoruba forms an action noun by copying the first consonant of the verb and adding a high-tone í. The original verb then follows. Reduplication simply means repeating all or part of a word.

Verb	Meaning	Action noun	Meaning
jẹ	eat	jíjẹ	eating
kà	read	kíkà	reading
ṣe	do, make	ṣíṣe	doing, making
kọ́	learn, teach	kíkọ́	learning, teaching
lọ	go	lílọ	going
wá	come	wíwá	coming
rí	see	ríri	seeing

A useful learner formula is:

first consonant + í + verb → action noun

This is a guide, not a license to invent every form mechanically. The vowel and tone written in the noun matter. For example, rí gives ríri, not an automatically predicted form with í in both syllables. Learn the written form together with its meaning and pronunciation.

Yoruba spelling marks three tone levels: an acute accent marks high tone, a grave accent marks low tone, and an unmarked vowel normally has mid tone. Compare kà “read” with kíkà “reading.” If you omit the marks while learning, you hide information needed to say and recognize the word correctly.

Longer and vowel-initial verbs

The copied material is attached to the beginning of the whole verb. With longer verbs, the rest of the verb remains present:

Verb	Meaning	Nominalized form	Meaning
sùn	sleep	sísùn	sleeping
rìn	walk	rírìn	walking
kọrin	sing	kíkọrin	singing

Vowel-initial verbs do not always fit the simple consonant-copying formula neatly. Established forms should therefore be checked and learned as vocabulary rather than guessed from English.

Using the action noun in a sentence

Once formed, an action noun can occupy positions where an ordinary noun can occur.

As the subject

The subject is what the sentence is about or what performs the action. An action noun can head the subject phrase:

• Kíkà ìwé ṣe pàtàkì. — “Reading books is important.”
• Ṣíṣe iṣẹ́ kò rọrùn. — “Working is not easy.”

The noun after the action noun often identifies what the action affects: kíkà ìwé is literally the reading of books, and jíjẹ oúnjẹ is the eating of food. English commonly compresses the same idea into “reading books” or “eating food.”

As an object

The object is the person or thing affected by, wanted in, or otherwise completing the action of a verb. A nominalized activity can fill that role:

• Mo fẹ́ràn kíkà ìwé. — “I enjoy reading books.”
• Ó bẹ̀rẹ̀ sí í kọ́ kíkà. — “He or she began to learn reading.”

Do not assume that every English verb followed by -ing maps word for word to a Yoruba construction. The surrounding Yoruba verb may require its own complement pattern.

With a possessor

A possessor follows the noun in Yoruba. With an action noun, it can identify the person who performs the action:

• wíwá rẹ — “his/her coming” or “your coming,” depending on context
• lílọ wọn — “their going”
• kíkọ́ Adé — “Ade’s learning/teaching,” with the intended reading supplied by context

Because rẹ can refer to “your” (singular) or “his/her” in different forms and contexts, translation alone may not settle the reference. The full conversation does.

Event nouns with à-

Some nouns referring to an event, result, or abstract idea begin with à-:

Verb	Meaning	Noun	Typical meaning
lọ	go	àlọ	departure, going away

Compare lílọ and àlọ. Lílọ transparently presents “going” as an activity or process. Àlọ is a more lexical event noun, “departure.” It is safest to learn à- nouns individually: à- is not a fully predictable prefix that can be attached to any verb whenever English uses an abstract noun.

Compounds and established nouns

Yoruba also builds nouns by combining meaningful elements. A compound is a word or expression made from more than one lexical element. A familiar example is ilé ẹ̀kọ́ “school,” literally an “educational/learning house.” In normal spelling it is written as two words.

Compounds are not the same as productive action nouns. Kíkọ́ names the activity “learning/teaching”; ilé ẹ̀kọ́ names a place. The form and meaning of an established compound may reflect sound changes or conventional wording, so learn it as a whole expression rather than reconstructing it afresh each time.

Three patterns at a glance

Pattern	Main function	Example	Best learning strategy
Partial reduplication	Activity or process	jẹ → jíjẹ	Learn the productive pattern and tones
Prefixed lexical noun	Event, result, or abstract noun	lọ → àlọ	Learn noun by noun
Compound	Person, place, object, or concept associated with an action	ilé ẹ̀kọ́	Learn as a complete lexical item

Examples in Context

Yoruba	English	Note
Jíjẹ oúnjẹ dára fún ìlera.	Eating food is good for health.	Jíjẹ oúnjẹ is the subject.
Kíkà ìwé ṣe pàtàkì.	Reading books is important.	Productive reduplication from kà.
Ṣíṣe iṣẹ́ kò rọrùn.	Working is not easy.	The action noun is negated through the predicate kò rọrùn.
Mo fẹ́ràn kíkà ìwé ní alẹ́.	I enjoy reading books at night.	The activity follows fẹ́ràn “like/enjoy.”
Kíkọ́ èdè Yorùbá ń gba àkókò.	Learning Yoruba takes time.	Kíkọ́ is followed by what is learned.
Wíwá rẹ mú inú mi dùn.	Your coming made me happy.	A possessor follows the action noun.
Lílọ sí ọjà ní kutukutu dára.	Going to the market early is good.	sí ọjà remains attached to the idea of going.
Rírìn lojoojúmọ́ dára fún ara.	Walking every day is good for the body.	The activity is discussed as a habit.
Sísùn dáadáa ṣe pàtàkì.	Sleeping well is important.	An adverb can describe the nominalized activity.
Ríri rẹ mú inú mi dùn.	Seeing you made me happy.	rẹ is understood from context.
Àlọ rẹ̀ dùn mí.	His or her departure saddens me.	Àlọ presents the event as a departure.
Àwọn ọmọ lọ sí ilé ẹ̀kọ́.	The children went to school.	Ilé ẹ̀kọ́ is an established compound.

Common Mistakes

Keeping the bare verb where a noun is needed

• Wrong: Kà ìwé ṣe pàtàkì.
• Right: Kíkà ìwé ṣe pàtàkì.
• Why: Here the whole activity “reading books” is the subject. The bare verb kà is a command or verbal form, not the required action noun.

Treating English -ing as one universal Yoruba ending

• Wrong: assuming every English word ending in -ing must be translated with one fixed suffix
• Right: choose an established Yoruba action noun, such as jíjẹ, kíkà, or ṣíṣe, and check the larger construction
• Why: English -ing has several grammatical jobs. Yoruba nominalization is word formation, not a direct replacement of the letters -ing.

Dropping tone and underdot marks

• Wrong: kika iwe
• Right: kíkà ìwé
• Why: Tone marks and underdots distinguish Yoruba vowels and tones. Writing them reinforces the correct form and prevents ambiguity.

Extending à- freely

• Wrong: creating an à- noun from any new verb by analogy
• Right: learn attested à- nouns such as àlọ as vocabulary
• Why: Unlike the common reduplicated action-noun pattern, this prefix is not equally productive with every verb.

Writing the school compound as one invented form

• Wrong: ilékọ̀ọ́
• Right: ilé ẹ̀kọ́
• Why: The standard expression for “school” is the established two-word compound ilé ẹ̀kọ́. Do not rebuild compounds solely from an English gloss or an approximate sound.

Putting a possessor before the noun

• Wrong: rẹ wíwá
• Right: wíwá rẹ
• Why: English says “your coming,” but Yoruba places the possessor after the noun.

Usage Notes

Action nouns are common in both speech and writing, especially when evaluating or discussing an activity: saying that it is useful, difficult, pleasant, or necessary. In everyday conversation, speakers may instead prefer a full clause where English uses an abstract noun. Natural choice depends on the surrounding predicate and on what the speaker wants to emphasize.

A nominalized form can still keep verb-like meaning inside its phrase. In kíkà ìwé, “reading” is grammatically the head noun, but ìwé still names what is read. Additional material may remain associated with the action, as in lílọ sí ọjà ní kutukutu “going to the market early.” This mixture of noun-like position and verb-like meaning is why these forms are often called verbal nouns.

Tone is grammatical and lexical, not decorative. Published informal messages sometimes omit tone marks, but learners should not copy that habit too early. Fully marked text makes contrasts visible and gives you a reliable pronunciation record.

Beyond the Basics / Advanced Use

At B2 and beyond, the important question is not merely how to form a verbal noun, but how much of the original verb phrase can remain inside it. A verbal noun may take what corresponds in meaning to an object, direction, manner, or possessor: ṣíṣe iṣẹ́ rẹ dáadáa can mean “doing your work well.” This creates a larger noun phrase that can itself serve as a sentence subject or object.

Context may also decide between an activity, a particular event, and a lexicalized meaning. Compare:

Form	Typical focus
lílọ	the activity or process of going
àlọ	a departure as an event
ilé ẹ̀kọ́	a conventional place noun: school

These are not three stylistic versions of one interchangeable word. The first is transparently formed from a verb, the second is a lexical event noun, and the third is a compound with its own established meaning.

Some Yoruba verbs have related senses that English expresses with separate verbs. For example, kọ́ can be understood as “learn” or “teach” according to its construction and context, so kíkọ́ may also need context for an exact English translation. Advanced reading therefore requires you to interpret the full phrase rather than translating the nominalized word in isolation.

Practice Tips

1. Build families, not lists. Write a verb, its action noun, and one full phrase together: kà → kíkà → kíkà ìwé. Say each item aloud with its tones.
2. Transform complete sentences. Start with Adé ka ìwé “Ade read a book,” then make the activity the topic: Kíkà ìwé ṣe pàtàkì “Reading books is important.” This shows the change in grammatical role.
3. Sort what you meet. Keep three columns in your notes: reduplicated action nouns, à- nouns, and compounds. This prevents you from overgeneralizing one pattern to all nouns related to verbs.

Related Concepts

• Prerequisite: Basic Sentence Structure (SVO) — helps you recognize when the new noun phrase is the subject or object.
• Next step: Verbal Nouns and Gerunds — develops the noun-like and verb-like behavior of forms such as jíjẹ, wíwá, and ṣíṣe in larger phrases.