Etymologically

slap

Etymology and origin of the English word slap

Confidence
Established
Formation
Onomatopoeia
First attested
c. 1450

Pronunciation

  • IPA: /slæp/[1]

Etymology

It is of imitative origin,[2][3][4] similar to Low German slapp, a blow, and German Schlappe.[2][4][5]

Earliest recorded meaning

A smart blow, especially with the open hand: about 1450 as slappe,[6] the mid-15th century in Etymonline;[2] 1648 in the OED, which doubts earlier instances.[7]

Semantic evolution

The verb, to strike with the open hand, is from the late 15th century.[2] The adverb, suddenly, is from the 1670s, and directly from 1829 (slap in the middle).[2][5] The figurative sense, an insult or rebuke, is attested by 1736[2] (a slap in the face).[8] Slap and tickle, playful amorous activity, is by 1915.[2] Slapdash is from the 17th century,[4] and slap-happy from 1936.[2] To put something somewhere carelessly or quickly (slap on some paint) is by 1836.[2]

Timeline

  • c. 1450 – a blow with the hand.[6]
  • late 15th century – to slap (verb).[2]
  • 1670s – suddenly (adverb).[2]
  • 1736 – an insult.[2]
  • 1915 – slap and tickle.[2]

Modern meaning

Noun

  1. A sharp blow with the open hand or something flat; a smack.
  2. The sound of such a blow.
  3. A sharp insult or rebuke: a slap in the face.

Verb

  1. To strike with the open hand or something flat.
  2. To put somewhere quickly or carelessly: to slap on paint.

Adverb

  1. (informal) Directly and with force: slap in the middle.

Word family

  • slapper
  • slaphappy
  • backslap
  • slapdash
  • slapstick
  • unslapped
  • slap-up
  • slap-bang
  • smack

Usage notes

Merriam-Webster records a separate slap, a gap or opening, as in a wall, from Middle Dutch slop.[5]

References

  1. ^ Jones, Daniel (2011), Cambridge English Pronouncing Dictionary, 18th ed., ed. Peter Roach, Jane Setter and John Esling, Cambridge: Cambridge University Press
  2. ^ a b c d e f g h i j k l m Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  3. ^ Cresswell, Julia (2021), Oxford Dictionary of Word Origins, 3rd ed., Oxford: Oxford University Press
  4. ^ a b c Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
  5. ^ a b c Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  6. ^ a b Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  7. ^ Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press
  8. ^ Collins English Dictionary (2023), Glasgow: HarperCollins
Cite this entry

“Slap.” Etymologically, 17 Oct. 2026, etymologically.com/en/slap. Accessed 17 Oct. 2026.

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