contaminate

From Old French contaminer, from Latin contaminare (“to touch together, blend, mingle, corrupt, defile”), from contamen (“contact, defilement, contagion”), related to tangere. More at taste, tax, and taxi.

• IPA^(key): /kənˈtæmɪneɪt/

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contaminate (third-person singular simple present contaminates, present participle contaminating, simple past and past participle contaminated)

1. (transitive) To make something dangerous or toxic by introducing impurities or foreign matter.

   This water is contaminated. It isn't safe to drink.

2. (transitive) To soil, stain, corrupt, or infect by contact or association.
   • 1599 (first performance), William Shakespeare, “The Tragedie of Iulius Cæsar”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act IV, scene iii]:

     Shall we now
     Contaminate our figures with base bribes?

   • 1766, [Oliver Goldsmith], The Vicar of Wakefield: […], volumes (please specify |volume=I or II), Salisbury, Wiltshire: […] B. Collins, for F[rancis] Newbery, […], →OCLC; reprinted London: Elliot Stock, 1885, →OCLC:

     I would neither have simplicity imposed upon, nor virtue contaminated.

   • 2014 April 12, Michael Inwood, “Martin Heidegger: the philosopher who fell for Hitler [print version: Hitler's philosopher]”, in The Daily Telegraph (Review)‎, London, page R11:

     [Martin] Heidegger's repellent political beliefs do not contaminate his philosophical work.

3. (transitive) To make unfit for use by the introduction of unwholesome or undesirable elements.

   Do not contaminate the peanut butter with the jelly.

4. To infect, often with bad objects

• cross-contaminate

• contaminable
• contamination
• contaminative

• “contaminate”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.
• “contaminate”, in The Century Dictionary […], New York, N.Y.: The Century Co., 1911, →OCLC.
• “contaminate”, in OneLook Dictionary Search.

contaminate

1. inflection of contaminare:
   1. second-person plural present indicative
   2. second-person plural imperative
   3. feminine plural past participle

• manentatico

contāmināte

1. second-person plural present active imperative of contāminō

contaminate

1. second-person singular voseo imperative of contaminar combined with te