Etymology
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ken (v.)
"to know, understand, take cognizance of," a word surviving mainly in Scottish and northern England dialect, from Middle English kennen, "make known; give instruction to; be aware, know, have knowledge of, know how to; recognize by sight; see, catch sight of," a very common verb, from Old English cennan "make known, declare, acknowledge" (in late Old English also "to know"), originally "cause to know, make to know," causative of cunnan "to become acquainted with, to know" (see can (v.)). Cognate with German kennen, Danish kjende, Swedish känna. Related: Kenned; kenning.
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ken (n.2)
"house used as a meeting place by thieves or other disreputable characters," 1560s, vagabonds' slang, probably a shortening of kennel (n.).
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ken (n.1)
1550s, "cognizance, intellectual view;" 1580s in a physical sense, "range of sight;" from ken (v.), in the second sense perhaps via kenning (n.2) in the same sense in nautical use; both from PIE root *gno- "to know."
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kenning (n.2)
early 14c., "sign, token; teaching, instruction;" c. 1400, "range of vision," also "mental cognition;" late 15c., "sight, view;" verbal nouns from ken (v.).
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conation (n.)

in the philosophical sense of "voluntary agency" (embracing desire and volition), 1836, from Latin conationem (nominative conatio) "an endeavoring, effort," noun of action from past participle stem of conari "to endeavor, to try," from PIE *kona-, from root *ken- "to hasten, set oneself in motion" (see deacon).

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stall (v.2)
1590s, "distract a victim and thus screen a pickpocket from observation," from stall (n.2) "decoy." Meaning "to prevaricate, be evasive, play for time" is attested from 1903. Related: Stalled; stalling. Compare old slang stalling ken "house for receiving stolen goods" (1560s).
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deacon (n.)

Middle English deken, "one who reads the Gospel in divine worship, one of a body of assistants to a priest or other clergyman," from Old English deacon, diacon, from Late Latin diaconus, from Greek diakonos "servant of the church, religious official," literally "servant," from dia- here perhaps "thoroughly, from all sides," + PIE *kon-o-, from root *ken- "to hasten, set oneself in motion." Related: Deaconess; deaconship.

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surmise (n.)

early 15c., legal, "a charge, a formal accusation," from Old French surmise "accusation," noun use of past participle of surmettre (see surmise (v.)). Meaning "inference, guess" is first found in English 1580s.

Then felt I like some watcher of the skies
When a new planet swims into his ken;
Or like stout Cortez, when with eagle eyes
He stared at the Pacific—and all his men
Look'd at each other with a wild surmise—
Silent, upon a peak in Darien.
[Keats]
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recent (adj.)

early 15c., "recently made," of foods, etc., "fresh, newly made," from Latin recentem (nominative recens) "lately done or made, of recent origin, new, fresh, young," from re- (see re-) + PIE root *ken- "fresh, new, young" (source also of Greek kainos "new;" Sanskrit kanina- "young;" Old Irish cetu- "first," Breton kent "earlier;" Old Church Slavonic načino "to begin," koni "beginning").

Meaning "of or pertaining to the time just before the present" is by 1620s. Related: Recently; recentness ("state or quality of being recent," 1670s, but OED reports recency (1610s) was "Common in 19th c.").

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lush (n.)

"drunkard," 1890, from earlier slang meaning "liquor" (1790, especially in phrase lush ken "alehouse"), of obscure origin; perhaps a humorous use of lush (adj.) or from a word in Romany or Shelta (tinkers' jargon). It also was a verb, "to drink heavily" (1811).

LUSHEY. Drunk. The rolling kiddeys had a spree, and got bloody lushey; the dashing lads went on a party of pleasure, and got very drunk. ["Dictionary of Buckish Slang, University Wit, and Pickpocket Eloquence," London, 1811]

Hence also Lushington humorous generic name for a tippler (1823). It was an actual surname.

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