Webster's Revised Unabridged Dictionary · 1913

Contaminate

Contaminate (kon*tam"i*nāt) , transitive verb

[Latin contaminatus, past participle of contaminare to bring into contact, to contaminate, from contamen contagion, for contagmen; con- + root of tangere to touch. See Contact.]

To soil, stain, or corrupt by contact; to tarnish; to sully; to taint; to pollute; to defile.
Shall we now Contaminate our figures with base bribes? — Shakespeare
I would neither have simplicity imposed upon, nor virtue contaminated. — Goldsmith

Contaminate (-nat) , adjective

Contaminated; defiled; polluted; tainted.
Contaminate drink. — Daniel