Emily Dickinson Lexicon

TWEAG, or TWEAK, v.t. [Sax. twiccian, to twitch; G. zwicken; D. zwikken. It is radically the same word as twitch, and of the same signification.]

To twitch; to pinch and pull with a sudden jerk; as, to twaeg or tweak the nose. Shak. Swift.