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cunning

/ˈkʌnɪŋ/ adjective

In Latin: vafer, callidus, versūtus Wiktionary

Origin

From Middle English cunning, kunning, konnyng, alteration of earlier Middle English cunninde, kunnende, cunnand, from Old English cunnende, present participle of cunnan (“to know how to, be able to”), equivalent to con + -ing. Cognate with Scots cunnand (“cunning”), German könnend (“able to do”), Icelandic kunnandi (“cunning”). More at con, can.

From Wiktionary, via Kaikki.org (CC BY-SA)