strong verb

noun3

1. •
   Any of a class of Germanic verbs which use ablaut as opposed to a dental affix to indicate tense.

   • CONJUGATION OF THE STRONG VERB "TO TAKE" (Commonly called Irregular.) [...] Present, Take. Past, Took. Perf. Part. Taken. — 1850
2. •
   Any of a subset of English irregular verbs which lack the addition of a dental affix to indicate the simple past and past participle tenses.
3. •
   A member of a "strong" class in a language with two or more verb classes.

   • Three basic root consonant classes exist: the strong verb, roots with weak initial root consonant (I-weak verbs), roots with weak final consonants (III-weak verbs), and a composite class... — 2009