eclipsis

/ɪˈklɪpsɪs/
noun
  1. A grammatical phenomenon in some languages (especially Celtic languages like Irish) where the initial consonant of a word changes due to a preceding word.
    • In Irish, eclipsis changes the first letter of a noun after certain words like 'our'.
    • The rule of eclipsis can be tricky because it depends on the grammatical context.
    • Students learning Scottish Gaelic must master eclipsis to speak correctly.
What does "eclipsis" mean? | whatsthatwordmean | whatsthatwordmean