vitiate

[ vish-ee-eyt ]
/ ˈvɪʃ iˌeɪt /

verb (used with object), vi·ti·at·ed, vi·ti·at·ing.

to impair the quality of; make faulty; spoil.
to impair or weaken the effectiveness of.
to debase; corrupt; pervert.
to make legally defective or invalid; invalidate: to vitiate a claim.

Origin of vitiate

1525–35; < Latin vitiātus, past participle of vitiāre to spoil, derivative of vitium blemish, vice1 + -ātus -ate1

OTHER WORDS FROM vitiate

WORDS THAT MAY BE CONFUSED WITH vitiate

ameliorate obviate vitiate

Words nearby vitiate

vitellogenic, vitellointestinal cyst, vitellus, viti levu, vitiable, vitiate, vitiation, viticetum, viticulture, vitiliginous, vitiligo

British Dictionary definitions for non-vitiation

vitiate
/ (ˈvɪʃɪˌeɪt) /

verb (tr)

to make faulty or imperfect
to debase, pervert, or corrupt
to destroy the force or legal effect of (a deed, etc) to vitiate a contract

Derived forms of vitiate

vitiable, adjective vitiation, noun vitiator, noun

Word Origin for vitiate

C16: from Latin vitiāre to injure, from vitium a fault