the world > movement > motion in specific manner > alternating or reciprocating motion > oscillation > oscillate [verb (intransitive)] > wave > as signal (2)
To make motions (with the uplifted hands or with something held in the hands) by way of signal. Chiefly Nautical. (Cf. weave, v.2) Obsolete.
To brandish (a weapon). Also, to wave (something) defiantly, as a signal, or to attract notice. Obsolete except in jocular use (cf. flag-wagging n.…