Verb

Middle English; partly from Old English tyrnan & turnian to turn, from Medieval Latin tornare, from Latin, to turn on a lathe, from tornus lathe, from Greek tornos; partly from Anglo-French turner, tourner to turn, from Medieval Latin tornare; akin to Latin terere to rub — more at throw entry 1

Noun

Middle English; partly from Anglo-French tur, tourn turning, circuit (from turner to turn); partly from Middle English turnen to turn

Verb

before the 12th century, in the meaning defined at transitive sense 1a

Noun

13th century, in the meaning defined at sense 1a