Etymograph

English

hypofunction

From hypo- + function.

A compound of hypo- + function

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

Ancient Greek ὑπό ‘under’

English hypo-

Proto-Indo-European *bʰewg- ‘to enjoy’

…

Latin fungor ‘to perform’

Latin fūnctiō ‘performance’

Old French fonction

Middle French function

English function

Today it means

noun Abnormally low function.

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

Etymograph / hypofunction