ken

Etymology 1

From Middle English kennen (“to give birth, conceive, generate, beget; to develop (as a fetus), hatch out (of eggs); to sustain, nourish, nurture”), from Old English cennan (“to give birth, conceive, generate, beget”), from Proto-West Germanic *kannjan, from Proto-Germanic *kanjaną.

verb

1. (obsolete) To give birth, conceive, beget, be born; to develop (as a fetus); to nourish, sustain (as life).
   To the soul this ghostly bread is the learning and the teaching and the understanding in the commandments of God, wherethrough the soul is kenned and lives. 1524, Desiderius Erasmus, translated by Margaret Roper, A Devout Treatise upon the Paternoster

Etymology 2

Northern and Scottish dialects from Middle English kennen, from Old English cennan (“make known, declare, acknowledge”) originally “to make known”, causative of cunnan (“to become acquainted with, to know”), from Proto-West Germanic *kannijan, from Proto-Germanic *kannijaną, causative of *kunnaną (“be able”), from which comes the verb can. Cognate with West Frisian kenne (“to know; recognise”), Dutch kennen (“to know”), German kennen (“to know, be acquainted with someone/something”), Norwegian Bokmål kjenne, Norwegian Nynorsk kjenna, Old Norse kenna (“to know, perceive”), Swedish känna (“to know, feel”), Danish kende (“to know”). See also: can, con. The noun meaning “range of sight” is a nautical abbreviation of present participle kenning.

verb

1. (transitive, chiefly Scotland) To know, perceive or understand.
   It was noted by them that kenned best that her cantrips were at their worst when the tides in the Sker Bay ebbed between the hours of twelve and one. 1902, John Buchan, The Outgoing of the Tide
   Johnny: Is your name Maggie? / Maggie: How'd you ken that? / Johnny: It's just a hunch. Are you looking for the, uh, petulant dwarf? 1993, Mike Leigh, Naked (motion picture)
2. (obsolete, chiefly Scotland) To discover by sight; to catch sight of; to descry.
   I proposed to the Mariners, that it would be of great benefit in Navigation to make use of [the telescope] upon the round-top of a ship, to discover and kenne Vessels afar off. 1662, Thomas Salusbury, Galileo's Dialogue Concerning the Two Chief World Systems, Dialogue 2

noun

1. Knowledge, perception, or sight.
   These people, these 20 or 25, were in my ken. Senator Jenner. In his what? Mr. Greenglass. My ken, my line of vision, my knowledge. 1957, United States Congressional serial set, number 11976
   On this occasion, I wrote to them: "Two more modest and deserving people than you are not in our ken; and it is but fitting that you receive this, preservation's most prestigious prize, for your selfless devotion to the cause through the years. 1977, Roulhac Toledano, Sally Kittredge Evans, The Esplanade Ridge
   Though he was out in the streets and away from the Firm and the Firm's ken, though he had work to do and action to relieve him, he was angry. 1986, John le Carré, A Perfect Spy
   Since nothing in our ken differentiates knowledge from luck, something beyond our ken is introduced to do so. But the conviction that we know something is small comfort when coupled with the realization that we cannot tell what. 1999, Catherine Z. Elgin, Considered Judgment
   I couldn't see the funny side myself, but Tristan could; after a while he could hardly control his merriment, in fact, so that he collapsed back on the bed, continuing to chortle, more of his rather unpleasant teeth making an unwelcome appearance in my ken. 2012, Keith McCarthy, Nor All Your Tears
   It was an intelligence beyond human ken but integral to everything, perhaps most like the Great Tao of Eastern philosophy of the same period, and it flowed like a European form of Chinese chi. 2015, Brian Bates, The Real Middle Earth
2. (nautical) Range of sight.

Etymology 3

Perhaps from kennel.

noun

1. (slang, UK, obsolete, thieves' cant) A house, especially a den of thieves.
   Ben mort, shall you and I heave a bough, mill a ken, or nip a bung, and then we'll couch a hogshead under the ruffmans, and there you shall wap with me, and I'll niggle with you. 1611, Thomas Middleton, “The Roaring Girl”, in Arthur Henry Bullen, editor, The Works of Thomas Middleton, volume 4, published 1885, act 5, scene 1, pages 128–129
   Ah, Bess, my covess, strike me blind if my sees don't tout your bingo muns in spite of the darkmans. Egad, you carry a bene blink aloft. Come to the ken alone—no! my blowen; did not I tell you I should bring a pater cove, to chop up the whiners for Dawson? 1828, Edward Bulwer-Lytton, Pelham: or The Adventures of a Gentleman, page 383
   Up she goes to any likely ken, where she knows there are women that are married or expect to get married, and commences begging. 1851, Henry Mayhew, London Labour and the London Poor, volume 1, page 351

Etymology 4

Hebrew קֵן (“nest”)

noun

1. (Judaism) Youth or children's group.
   Gilboa and Habonim Dror also run year-round programming, holding regional reunions (called kenim) up and down the state January 15, 2016, Dan Pine, “Hike, swim, fix the world: Kids mix it up at Gilboa camp”, in The Jewish News of Northern California
   Gavriella: At an annual movement conference. I went for the first time, and we proposed creating new kenim [branches] and it was approved, which is amazing! 6 October 2018, Meital Shapiro, “What It's Like to Be a Socialist Zionist in the U.S.”, in Israel News
   At the beginning of 1944 he was sent to Debreccen to operate the local ken and to organize self-defense. 2007, David Gur, דוד גור, Eli Netser, Brothers for Resistance and Rescue, page 87

Etymology 5

Japanese 間

noun

1. A Japanese unit of length equal to six shakus.

Etymology 6

Japanese 剣

noun

1. The tsurugi (type of sword).