acerbate
1. [ verb ] cause to be bitter or resentful
Synonyms: embitter envenom
Examples:

"These injustices embittered her even more"

Related terms: bitterness resent
2. [ verb ] make sour or bitter
Related terms: change acerbity
Similar spelling:   Acrobates
  acrobat
  acerb
  acervate
  acrobatic
  acrobatics
  acerbic
  Acer_rubrum
  acerbity