Main Entry: hei·nous

Pronunciation: \ˈhā-nəs\

Function: adjective

Etymology: Middle English, from Anglo-French hainus, heinous, from haine hate, from hair to hate, of Germanic origin; akin to Old High German haz hate — more at hate

Date: 14th century

: hatefully or shockingly evil : abominable

— hei·nous·ly adverb

— hei·nous·ness noun