Editing Consonant mutation (section)

===== Lenition =====
Lenition ({{lang|ga|séimhiú}}) is indicated by an {{vr|h}} following the consonant in question or, in some older typefaces and texts, by an [[dot (diacritic)|overdot]] ({{vr|◌̇}}) above the letter that has undergone lenition. The effects of lenition are as follows:

# A stop becomes a fricative. [[Voice (phonetics)|Voicing]] is retained, as is [[place of articulation]] except for the [[coronal consonant|coronals]].
#*{{IPA|/pˠ/}} → {{IPA|/fˠ/}}
#*{{IPA|/pʲ/}} → {{IPA|/fʲ/}}
#*{{IPA|/t̪ˠ/}} → {{IPA|/h/}}
#*{{IPA|/tʲ/}} → {{IPA|/h/}}
#*{{IPA|/k/}} → {{IPA|/x/}}
#*{{IPA|/c/}} → {{IPA|/ç/}}
#*{{IPA|/bˠ/}} → {{IPA|/w/}}, {{IPA|/v/}}
#*{{IPA|/bʲ/}} → {{IPA|/vʲ/}}
#*{{IPA|/d̪ˠ/}} → {{IPA|/ɣ/}}
#*{{IPA|/dʲ/}} → {{IPA|/j/}}
#*{{IPA|/ɡ/}} → {{IPA|/ɣ/}}
#*{{IPA|/ɟ/}} → {{IPA|/j/}}
#*{{IPA|/mˠ/}} → {{IPA|/w/}}
#*{{IPA|/mʲ/}} → {{IPA|/vʲ/}}
# {{IPA|/sˠ/}} and {{IPA|/ʃ/}} become {{IPA|/h/}}, but {{IPA|/sˠp(ʲ)/}}, {{IPA|/sˠm(ʲ)/}}, {{IPA|/sˠt̪ˠ/}}, {{IPA|/ʃtʲ/}}, {{IPA|/sˠk/}}, and {{IPA|/ʃc/}} do not mutate.
# {{IPA|/fˠ/}} and {{IPA|/fʲ/}} are deleted.

{| class="wikitable"
|+Examples
|-
!Unmutated
!Lenition
!Gloss
|-
|{{Lang|ga|peann}} {{IPA|/pʲaːn̪ˠ/}}
|{{Lang|ga|pheann}} {{IPA|/fʲaːn̪ˠ/}}
|"pen"
|-
|{{Lang|ga|teach}} {{IPA|/tʲax/}}
|{{Lang|ga|theach}} {{IPA|/hax/}}
|"house"
|-
|{{Lang|ga|ceann}} {{IPA|/caːn̪ˠ/}}
|{{Lang|ga|cheann}} {{IPA|/çaːn̪ˠ/}}
|"head"
|-
|{{Lang|ga|bean}} {{IPA|/bʲanˠ/}}
|{{Lang|ga|bhean}} {{IPA|/vʲanˠ/}}
|"woman"
|-
|{{Lang|ga|droim}} {{IPA|/d̪ˠɾˠiːmʲ/}}
|{{Lang|ga|dhroim}} {{IPA|/ɣɾˠiːmʲ/}}
|"back"
|-
|{{Lang|ga|glúin}} {{IPA|/ɡl̪ˠuːnʲ/}}
|{{Lang|ga|ghlúin}} {{IPA|/ɣl̪ˠuːnʲ/}}
|"knee"
|-
|{{Lang|ga|máthair}} {{IPA|/mˠaːhəɾʲ/}}
|{{Lang|ga|mháthair}} {{IPA|/waːhəɾʲ/}}
|"mother"
|-
|{{Lang|ga|súil}} {{IPA|/sˠuːlʲ/}}
|{{Lang|ga|shúil}} {{IPA|/huːlʲ/}}
|"eye"
|-
|{{Lang|ga|freagra}} {{IPA|/fʲɾʲaɡɾˠə/}}
|{{Lang|ga|fhreagra}} {{IPA|/ɾʲaɡɾˠə/}}
|"answer"
|}