ablaut /ˈɑbˌlaʊt/verb 2noun 1forms 3 verb2 •To undergo a change of vowel.This root must once have ablauted, given the associated nominal derivatives prthii- 'broad', prthivl- 'earth'. However, it does not ablaut at all in its verbal forms. — 1983 •To cause to change a vowel. noun1 •The substitution of one root vowel for another, thus indicating a corresponding modification of use or meaning; vowel permutation, distinct from the phonetic influence of a succeeding vowel. formsablauted · ablauting · ablauts
