- Confidence
- Established
- Formation
- Borrowing
- First attested
- a. 1100
- Borrowed from
- Old Norse knífr via Middle English, Old English
- Ultimate origin
- Old Norse (knífr)
Pronunciation
- IPA: /naɪf/[1]
Etymology
It is inherited from Middle English knif, inherited from Old English cnīf, probably borrowed from Old Norse knífr (“knife, dirk”),[2][3][4][5] from Proto-Germanic *knībaz, the source also of Middle Low German knīf and Middle Dutch cnijf,[2][4][3] a word of uncertain origin.[2][4] There are also forms with p, such as German kneifen “to pinch”.[2][3] French canif “penknife” (mid-15th century) is probably of Germanic origin.[2]
Earliest recorded meaning
A cutting tool with a blade and handle: before 1100 in the OED and Barnhart.[6][3] A knife used as a weapon is from about 1175.[6]
Semantic evolution
A blade forming part of a machine is from 1833.[6] Before you can say knife, very quickly, is from 1874, and the knife for surgery from 1880.[6] To get one's knife into someone, to show malice, is from 1890,[6] and an atmosphere you could cut with a knife from 1892.[6] The verb, to stab with a knife, is from 1865,[2] to betray in politics later,[7][8] and the intransitive sense “to move like a knife” from 1920.[2]
Timeline
- a. 1100 – a cutting tool.[6][3]
- c. 1175 – a weapon.[6]
- 1865 – verb, to stab.[2]
- 1880 – the knife, surgery.[6]
- 1920 – to cut through.[2]
Modern meaning
Noun
- A tool with a sharp blade fixed to a handle, used for cutting or as a weapon.
- A cutting blade in a machine.
Verb
- To cut or stab with a knife.
- To try to defeat someone by underhand means.
- To pass through something like a knife.
Word family
- knifer
- knifelike
- knife-edge
- knifepoint
- paperknife
- knife pleat
- knife rest
Related words
- penknife
- jackknife
References
- ^ Jones, Daniel (2011), Cambridge English Pronouncing Dictionary, 18th ed., ed. Peter Roach, Jane Setter and John Esling, Cambridge: Cambridge University Press
- ^ a b c d e f g h i Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
- ^ a b c d e Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
- ^ a b c Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
- ^ Pearsall, Judy, ed. (1998), The New Oxford Dictionary of English, Oxford: Clarendon Press
- ^ a b c d e f g h i Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press
- ^ Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
- ^ The American Heritage Dictionary of the English Language (1992), 3rd ed., Boston: Houghton Mifflin
Related etymologies
Cite this entry
“Knife.” Etymologically, 16 Oct. 2026, etymologically.com/en/knife. Accessed 16 Oct. 2026.
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