English has several words spelled con: the verb to study or learn, the adverb against, the verb to steer a ship, and the slang swindle.[1][2][3]
Pronunciation
- IPA: /kɒn/ (UK); /kɑn/ (US)[4]
con1 study, learn
- Confidence
- Established
- Formation
- Inherited
- First attested
- c. 1425
- Inherited from
- Old English cunnan via Middle English
- Ultimate origin
- Old English (cunnan)
Etymology
The verb is inherited from Middle English connen, a variant of cunnen, inherited from Old English cunnan (“to know, know how”) (see can),[1][2][5] with its vowel from the Old English present forms con, can, and partly from the weak Old English cunnian.[3][5]
Earliest recorded meaning
To study or learn by heart: about 1425, in Andrew of Wyntoun's Chronicle, in Barnhart, though conned as a past tense of con thanks, to give thanks, is found by 1325.[1] Hoad notes that it is not clearly separate from cun before the 15th century.[2]
Semantic evolution
The old senses of knowing were taken over by can.[3] Con came to mean to commit to memory and to peruse or scan carefully.[2][6] In northern and Midland dialect it meant to meditate on something in order to learn it.[7]
Timeline
Modern meaning
Verb
- (archaic) To study or examine carefully; to peruse.
- To learn or commit to memory.
con2 against
- Confidence
- Established
- Formation
- Clipping
- First attested
- 1572
- From
- Latin contra
- Ultimate origin
- Latin (contra)
Etymology
The adverb is short for from Latin contrā (“against”) (see contra).[1][8][5]
Earliest recorded meaning
Against a proposition: 1572, originally in pro and con,[1] the 1570s in Etymonline.[8]
Semantic evolution
The noun, a reason or argument against, is from 1589,[1][5] chiefly in pros and cons; it can also mean a person who argues or votes against.[3][6]
Timeline
Modern meaning
Adverb
- In opposition; against.
Noun
- An argument or reason against something, chiefly in pros and cons.
- A person who holds an opposing view.
con3 steer a ship
- Confidence
- Established
- Formation
- Borrowing
- First attested
- 1626
- Borrowed from
- Old French conduire
- Ultimate origin
- Latin (conduco)
Etymology
The nautical verb is a reduced form of obsolete cond, from condue,[2][3] borrowed from Old French conduire (“to conduct, guide”),[8][2] from Latin condūcere (“to lead together”) (see conduct).[8][2]
Earliest recorded meaning
To direct the steering of a ship: 1626 in the OED,[9] the 1620s in Etymonline.[8]
Semantic evolution
The noun, the action or post of conning a ship, is from 1825.[8] The conning tower, the armoured pilot house of a warship and later of a submarine, is from 1865.[8][2]
Timeline
Modern meaning
Verb
- To direct the steering of a ship.
Noun
- The control or post of the person steering a ship.
Word family
- conning tower
con4 swindle
- Confidence
- Established
- Formation
- Clipping
- First attested
- 1889
Etymology
The slang word is short for confidence, in confidence man (1849) or confidence game,[1][8][2] from the many scams in which the victim is persuaded to hand over money as a token of confidence.[8][1]
Earliest recorded meaning
Swindling, in con man: 1889, in American English.[1][8]
Semantic evolution
The verb, to swindle, is from 1896,[1] and con artist is from 1910.[8] The verb has also come to mean to persuade by deceit.[3][10]
Timeline
Modern meaning
Verb
- (informal) To swindle or trick someone, especially after winning their trust.
Noun
- (informal) A confidence trick; a swindle.
Word family
- con man
- con artist
- con game
Related words
- couth
- cuddle
- cunning
- ken
- unconned
- pros and cons
- can
- contra
- conduct
- confidence
Usage notes
Con is also slang for a convict (1893),[1][3] and short for convention, especially a meeting of science-fiction fans (late 20th century).[3] In mod con it is short for convenience.[3]
References
- ^ a b c d e f g h i j k l m n o p q Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
- ^ a b c d e f g h i Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
- ^ a b c d e f g h i Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
- ^ Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
- ^ a b The American Heritage Dictionary of the English Language (1992), 3rd ed., Boston: Houghton Mifflin
- ^ Wright, Joseph, ed. (1898–1905), The English Dialect Dictionary, 6 vols., Oxford: Henry Frowde; via EDD Online 4.0, University of Innsbruck (CC BY 4.0)
- ^ a b c d e f g h i j k l m n o p Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
- ^ a b Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press
- ^ Collins English Dictionary (2023), Glasgow: HarperCollins
Related etymologies
Cite this entry
“Con.” Etymologically, 16 Oct. 2026, etymologically.com/en/con. Accessed 16 Oct. 2026.
Last edited on . ·