Definition of "envenom" [en•ven•om]

• To make poisonous or noxious. (verb-transitive)
• To embitter. (verb-transitive)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "In Lemnos pining with th 'envenom'd wound The fon of Psan, Philocletes, lay:"
• "543: With conquest, felt th 'envenom'd robe, and tore"
• "No. Then let France carry on, unless you deliberately decide to envenom the conflict in order to distract attention from your own difficulties."