WAG

v. & n. --v. (wagged, wagging) 1 tr. & intr. shake or wave rapidly or energetically to and fro. 2 intr. archaic (of the world, times, etc.) go along with varied fortune or characteristics. --n. a single wagging motion (with a wag of his tail). øthe tail wags the dog the less or least important member of a society, section of a party, or part of a structure has control. tongues (or beards or chins or jaws) wag there is talk. [ME waggen f. root of OE wagian sway]