(British) Alternative spelling of agonize
1.to suffer extreme pain or anguish; be in agony.
2.to put forth great effort of any kind.
3.to distress with extreme pain; torture.
1. to suffer or cause to suffer agony
2. (intransitive) to make a desperate effort; struggle; strive Derived Formsagonizingly, agonisingly, adverb Word OriginC16, via Medieval Latin from Greek agōnizesthai to contend for a prize, from agōnagonCollins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollinsPublishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Cite This Source
1580s, "to torture," from Middle French agoniser or directly from Medieval Latin agonizare, from Greek agonizesthai "to contend in the struggle" (see agony). Intransitive sense of "to suffer physical pain" is recorded from 1660s. That of "to worry intensely" is from 185
3. Related, Agonized; agonizing.
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