zetacism

Definitions

1. A sound change converting a consonant into /z/, the voiced alveolar sibilant.
   uncountable
2. The lack of a sound change in a language when languages in the same family undergo rhotacism.
   uncountable

Examples

“In the Lettish language, which partakes altogether of a more modern character, the zetacism seizes the dentals, gutterals ^([sic]), sibilants and liquids […]”

“Alternately, it was proposed that the reverse processes of sigmatism (the reverse of lambdacism) and zetacism (the reverse of rhotacism) may more accurately describe⟳ the alternations seen.”

CEFR level