Editing Cornish language (section)

==== Mutations ====
Cornish has initial [[consonant mutation]]: The first sound of a Cornish word may change according to grammatical context. As in Breton, there are four types of mutation in Cornish (compared with three in [[Welsh language|Welsh]], two in [[Irish language|Irish]] and [[Manx language|Manx]] and one in [[Scottish Gaelic]]). These changes apply to only certain letters (sounds) in particular grammatical contexts, some of which are given below:{{sfn|Ball|Müller|2009|pp=510-513}}

*[[Lenition]] or "soft" mutation:
**Feminine singular nouns are lenited after {{lang|kw-kkcor|an}} 'the':
***{{lang|kw-kkcor|kath}} 'cat' > {{lang|kw-kkcor|an gath}} 'the cat'
*[[Spirantization]] or "aspirate" mutation:
**Nouns are spirantized after {{lang|kw-kkcor|ow}} 'my':
***{{lang|kw-kkcor|tas}} 'father' > {{lang|kw-kkcor|ow thas}} 'my father'
*[[Provection]] or "hard" mutation:
**Verbs are provected after the verbal particle {{lang|kw-kkcor|ow}} (approximately English "-ing"):
***{{lang|kw-kkcor|gweles}} 'see' > {{lang|kw-kkcor|ow kweles}} 'seeing'
*Lenition followed by provection (usually), or "mixed" mutation:
**Type 1 mixed mutation:
***Occurs after the affirmative particle {{lang|kw-kkcor|y}}:
****{{lang|kw-kkcor|gwelav}} > {{lang|kw-kkcor|y hwelav}} 'I see'
**Type 2 mixed mutation:
***Occurs after 2nd person singular infixed pronoun {{lang|kw-kkcor|'th}}:
****{{lang|kw-kkcor|dorn}} 'hand' > {{lang|kw-kkcor|y'th torn}} 'in thy hand'