Webster's Revised Unabridged Dictionary · 1913

Adulterate

Adulterate ({not transcribed}) , transitive verb

[Latin adulteratus, past participle of adulterare, from adulter adulterer, prob. from ad + alter other, properly one who approaches another on account of unlawful love. Compare Advoutry.]

1.
To defile by adultery. [Obsolete] — Milton
2.
To corrupt, debase, or make impure by an admixture of a foreign or a baser substance; as, to adulterate food, drink, drugs, coin, etc.
The present war has... adulterated our tongue with strange words. — Spectator

Adulterate , intransitive verb

To commit adultery. [Obsolete]

Adulterate ({not transcribed}) , adjective

1.
Tainted with adultery.
2.
Debased by the admixture of a foreign substance; adulterated; spurious.