vitiate, viciate (it, ic as ish)

t. [Lat. vitiatus, pa. par. of vitio =to deprave, to injure, to spoil, from vitium =vice.] [VICE, 1.] 1. To render vicious, faulty, or imperfect; to impair, to deprave, to spoil. "Those are such as most commonly owe their being to a vitiated taste." - Wollaston : Religion of Nature , § 9. 2. To injure or impair the quality or substance of; to render noxious or injurious to health. "The lethal gas was gradually vitiating and displacing the ordinary atmosphere." -London Daily Chron icle. 3. To cause to fail of effect, either wholly or in part; to render invalid or of no effect; to destroy the validity or binding force of, as of a legal instrument; to invalidate, to annul. "A transposition of the order of the sacramental words, in some men's opinion, vitiates baptism."- Auliffe : Par ergon. *vit-i-ate, *vic'-i-ate (it, ic as Ish), a . [Latin vitiatus .] [VITIATE, verb.] Vitiated, depraved, tainted, infected. "Scripture adulterate and viciate with false gloses and wrong expos i cions."-More: Workes , p. 638.