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The Collaborative International Dictionary
Exacerbated

Exacerbate \Ex*ac"er*bate\ ([e^]gz*[a^]s"[~e]r*b[=a]t; 277), v. t. [imp. & p. p. Exacerbated ([e^]gz*[a^]s"[~e]r*b[=a]`t[e^]d); p. pr. & vb. n. Exacerbating ([e^]gz*[a^]s"[~e]r*b[=a]`t[i^]ng).] [L. exacerbatus, p. p. of exacerbare; ex out (intens.) + acerbare. See Acerbate.] To render more violent or bitter; to irritate; to exasperate; to imbitter, as passions or disease.
--Brougham.

Wiktionary
exacerbated

vb. (en-past of: exacerbate)