acerbic

Etymology

It is from Latin acerbus (“harsh to the taste, sharp, bitter, sour”) with the English suffix -ic,^{[2][3][4][5][6]} which Dictionary.com calls irregular for -ous;^[7] Merriam-Webster Unabridged and the Shorter Oxford form it from the earlier adjective acerb.^[8][9] That adjective, from the 1650s according to Etymonline, is from French acerbe, from the same Latin word.^[3] The Latin adjective was used especially of unripe fruit and also of character and conduct;^[3] it is related to ācer (“sharp”),^[6][3] and Etymonline derives it from Proto-Italic *akro-po- (“sharp”), from Proto-Indo-European *ak- (“be sharp, rise to a point, pierce”).^[3][5] It is related to acerbity, acrid and acid.^[6][3]

Earliest recorded meaning

Of speech, manner or temper: bitter and sharp, cutting: 1853, in G. W. M. Reynolds's Mysteries of the Court of London.^[2] Merriam-Webster Unabridged also gives 1853,^[8] while Etymonline and Barnhart date it to 1865.^[3][6]

Semantic evolution

Unlike its base, the word was figurative from the start: the OED and Etymonline note that its first and usual sense is of sharp speech or manners, and the literal sense of a sour or harsh taste came later.^[2][3] The older acerb had developed the other way, used of food from before 1616 (in Shakespeare's Othello) and of speech and temper only from 1822.^[2] The adverb acerbically is recorded from the late 20th century.^[9]

Timeline

• 1853 – of speech, manner or temper, bitter and sharp.^[2][8]

Meanings

Adjective

1. Sharp and biting in tone, character or expression; sarcastic or caustic: an acerbic review of the new opera.^[5][10][2]
2. Sour or bitter in taste; astringent.^[5][10][2]

Word family

• acerbically
• unacerbic

Related words

• acerb
• acerbity
• acrid
• acid

References

1. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
2. ^ a b c d e f g Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
3. ^ a b c d e f g h Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
4. ^ Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
5. ^ a b c d The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
6. ^ a b c d Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
7. ^ Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
8. ^ a b c Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
9. ^ a b Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
10. ^ a b Collins English Dictionary (2023), Glasgow: HarperCollins