Wag word meaning and definition

[noun] causing to move repeatedly from side to side
[noun] (informal) a witty amusing person who makes jokes
[verb] move from side to side, as of fingers and tails; "The happy dog wagged his tail"

\Wag\, v. t. [imp. & p. p. {Wagged}; p. pr. & vb. n. {Wagging}.] [OE. waggen; probably of Scand. origin; cf. Sw. vagga to rock a cradle, vagga cradle, Icel. vagga, Dan. vugge; akin to AS. wagian to move, wag, wegan to bear, carry, G. & D. bewegen to move, and E. weigh. [root]136. See {Weigh}.] To move one way and the other with quick turns; to shake to and fro; to move vibratingly; to cause to vibrate, as a part of the body; as, to wag the head. No discerner durst wag his tongue in censure. --Shak. Every one that passeth thereby shall be astonished, and wag his head. --Jer. xviii. 16. Note: Wag expresses specifically the motion of the head and body used in buffoonery, mirth, derision, sport, and mockery.
\Wag\, v. i. 1. To move one way and the other; to be shaken to and fro; to vibrate. The resty sieve wagged ne'er the more. --Dryden. 2. To be in action or motion; to move; to get along; to progress; to stir. [Colloq.] ``Thus we may see,'' quoth he, ``how the world wags.'' --Shak. 3. To go; to depart; to pack oft. [R.] I will provoke him to 't, or let him wag. --Shak.
\Wag\, n. [From {Wag}, v.] 1. The act of wagging; a shake; as, a wag of the head. [Colloq.] 2. [Perhaps shortened from wag-halter a rogue.] A man full of sport and humor; a ludicrous fellow; a humorist; a wit; a joker. We wink at wags when they offend. --Dryden. A counselor never pleaded without a piece of pack thread in his hand, which he used to twist about a finger all the while he was speaking; the wags used to call it the thread of his discourse. --Addison.

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