acerbate

ac·er·bate  (sr-bt)

tr.v. ac·er·bat·ed, ac·er·bat·ing, ac·er·bates

To vex or annoy.

---

[Latin acerbre, acerbt-, to make harsh, from acerbus, harsh; see acerbic.]

---

acerbate [ˈæsəˌbeɪt]

vb (tr)

1. to embitter or exasperate

2. to make sour or bitter

[from Latin acerbātus, past participle of acerbāre to make sour]

Thesaurus

Verb	1.	acerbate - cause to be bitter or resentful; "These injustices embittered her even more" embitter, envenom
	2.	acerbate - make sour or bitter                   alter, change, modify - cause to change; make different; cause a transformation; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue"