exasperate

 
Pronunciation: /ɪgˈzasp(ə)reɪt, ɛg-/

verb

[with object]
  • irritate intensely; infuriate: this futile process exasperates prison officers

Derivatives

exasperatedly

adverb

Origin:

mid 16th century: from Latin exasperat- 'irritated to anger', from the verb exasperare (based on asper 'rough')