English

hypomutable

From hypo- + mutable.

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

Ancient Greek ὑπό ‘under’

English hypo-

Proto-Indo-European *meyth₂- ‘to exchange’

Latin mūtō ‘to change, alter’

Latin mutabilis ‘liable to change’

Old French mutable

Middle English mutable ‘mutable, changeable, variable’

Today it means

adj Less than normally mutable

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

Etymograph / hypomutable