English

hypomutation

From hypo- + mutation.

Proto-Indo-European *upó ‘under, below’

Ancient Greek ὑπό ‘under’

English hypo-

Latin mūtō

Latin mūtātiō ‘change, alteration’

Old French mutacion

Middle English mutacioun ‘alteration, change, modification’

Today it means

noun A reduced rate of mutation

Language periods are conventional ranges, not dates for this word.

Etymograph / hypomutation