Aspirate Mutation in Welsh

Overview

The aspirate mutation (treiglad llaes) is the least common of the three Welsh mutations, but it is still essential knowledge at the A1 level. It affects only three consonants and is triggered by a small number of specific words, making it the most straightforward mutation to learn.

The term "aspirate" refers to the breathy quality of the resulting sounds, all of which involve a puff of air (represented by the letter "h" in the mutated form). Because the aspirate mutation has fewer triggers and fewer affected consonants than the soft or nasal mutations, many learners find it the easiest to master.

You will encounter the aspirate mutation most frequently with "ei" (her), "a" (and/with), and the numbers "tri" (three) and "chwe" (six).

How It Works

The aspirate mutation affects only three consonants:

Original	Mutated	Example
p	ph	pen → ei phen (her head)
t	th	tad → ei thad (her father)
c	ch	ci → ei chi (her dog)

Main Triggers

Trigger	Meaning	Example
ei (her/its f.)	her, possessive	ei chath (her cat)
â	with, and (formal)	â phump (with five)
tri	three (masculine)	tri chant (three hundred)
chwe	six	chwe phunt (six pounds)
na (in comparisons)	than	mwy na thri (more than three)
tua	about, approximately	tua phump (about five)

Distinguishing "ei" (his) from "ei" (her)

Both "his" and "her" are written as "ei" in Welsh, but they trigger different mutations:

• ei + soft mutation = his: ei gar (his car)
• ei + aspirate mutation = her: ei char (her car, wait — no: ei char is wrong)

Actually: ei + aspirate = her: ei chi (her dog, from "ci"), ei thad (her father, from "tad"), ei phen (her head, from "pen").

Examples in Context

Welsh	English	Note
ci → ei chi	dog → her dog	c → ch after "ei" (her)
tad → ei thad	father → her father	t → th after "ei" (her)
pump → â phump	five → with five	p → ph after "â"
cant → tri chant	hundred → three hundred	c → ch after "tri"
punt → chwe phunt	pound → six pounds	p → ph after "chwe"
pen → ei phen	head → her head	p → ph after "ei" (her)
car → ei char hi	car → her car	c → ch
te → paned o de (no aspirate here)	tea → a cup of tea	Not all "t" words aspirate
tri cheffyl	three horses	c → ch after "tri"
tua thri o'r gloch	about three o'clock	t → th after "tua"

Common Mistakes

Confusing "ei" (his) with "ei" (her)

• Wrong: ei chi meaning "his dog"
• Right: ei gi (his dog, soft mutation) vs ei chi (her dog, aspirate mutation)
• Why: The mutation is the only way to distinguish "his" from "her" in writing and speech. Getting the wrong mutation changes the meaning entirely.

Applying aspirate mutation to consonants other than p, t, c

• Wrong: ei fham (trying to aspirate "m" in "mam")
• Right: ei mam (no change — "m" is not affected by aspirate mutation)
• Why: Only p, t, and c undergo aspirate mutation. All other consonants remain unchanged after aspirate triggers.

Forgetting aspirate mutation after "a" (and)

• Wrong: coffi a te
• Right: coffi a the
• Why: The conjunction "a" (and) triggers aspirate mutation of p, t, and c. This is sometimes overlooked in casual speech but is important in correct Welsh.

Practice Tips

1. Memorize just three pairs: p→ph, t→th, c→ch. That is the entire aspirate mutation. Repeat them until they are automatic.

2. Practice with "ei" (her): Take common nouns starting with p, t, or c and form "her + noun" phrases. Compare them with "ei" (his) + soft mutation to reinforce the distinction.

3. Count with mutations: Practice saying "tri" and "chwe" with various nouns to build the aspirate habit: tri chant, chwe phunt, tri cheffyl.

Related Concepts

• Soft Mutation