envenom
verb
en·ven·om in-ˈve-nəm 
en-
envenomed; envenoming; envenoms
transitive verb
1
: to make poisonous
2
: embitter
Synonyms
- antagonize
- embitter
- empoison
See all Synonyms & Antonyms 
Example Sentences
thoughtless, self-indulgent antics that only managed to envenom his teammates
Recent Examples on the Web Testing the Constitution will further envenom the atmosphere. 
Conrad Black, National Review, 15 Sep. 2020
Conrad Black, National Review, 15 Sep. 2020 Word History
Etymology
Middle English envenimen, from Anglo-French envenimer, from en- + venim venom
First Known Use
13th century, in the meaning defined at sense 1
envenom
verb
as in to enrage
to implant bitter feelings in thoughtless, self-indulgent antics that only managed to envenom his teammates Synonyms & Similar Words
Relevance
- enrage
- anger
- embitter
- infuriate
- antagonize
- empoison
- estrange
- sour
- aggravate
- incense
- madden
- disaffect
- set (against)
- alienate
- disgruntle
- curdle
Antonyms & Near Antonyms
- endear
- ingratiate
- appease
- placate
- sweeten
- propitiate
- pacify
- assuage
- mollify