Etymologically

cockroach

Etymology and origin of the English word cockroach

Formation
Borrowing
Borrowed from
Spanish cucaracha

Pronunciation

  • IPA: /ˈkɒkɹəʊt͡ʃ/ (UK); /ˈkɑkɹoʊt͡ʃ/, /ˈkɑkəɹoʊt͡ʃ/ (US)[1]

Etymology

It is borrowed from Spanish cucaracha (“cockroach; chafer, beetle”),[2][3][4][5][6] from cuca “a kind of caterpillar”,[2][4][5] reshaped by folk etymology as if from English cock and roach.[2][3][4][5][6]

Earliest recorded meaning

An insect of the genus Blatta, especially the large dark-brown household pest (1624).[7][4] The first recorded use, cacarootch, is in a 1624 work by the colonist John Smith;[2][5] Merriam-Webster dates the word to 1623.[3]

Semantic evolution

English speakers did not simply borrow the Spanish word but made it look like familiar English words,[2] first cacarootch and then, from 1657, cockroche.[2] Folk etymology also connected the first part with caca “excrement”, perhaps because of the insect's smell.[5] It is also called simply roach.[6]

Timeline

  • 1624 – cacarootch, the insect.[2][7][4]
  • 1657 – the form cockroche.[2]
  • 1756 – cockroach apple.[7]

Modern meaning

Noun

  1. Any of numerous flat-bodied, fast-moving, chiefly nocturnal insects of the order Blattodea, several of which are common household pests.
  2. (derogatory) A term of abuse for a person regarded as despicable.

Word family

  • roach
  • cucaracha

References

  1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h The American Heritage Dictionary of the English Language (1992), 3rd ed., Boston: Houghton Mifflin
  3. ^ a b c Merriam-Webster's Collegiate Dictionary (2003), 11th ed., Springfield, Mass.: Merriam-Webster
  4. ^ a b c d e Barnhart, Robert K., ed. (1995), The Barnhart Concise Dictionary of Etymology, New York: HarperCollins
  5. ^ a b c d e Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  6. ^ a b c Random House Webster's Unabridged Dictionary (1999), 2nd ed., New York: Random House
  7. ^ a b c Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press

Related etymologies

Cite this entry

“Cockroach.” Etymologically, 15 Oct. 2026, etymologically.com/en/cockroach. Accessed 15 Oct. 2026.

Last edited on . ·