A dog will wag his tail when happy.
- An example of wag is what a dog's tail does when the dog is happy or excited.
- An example of wag is to move your tongue rapidly when talking.
transitive verbwagged, wag′ging
- to cause (something fastened or held at one end) to move rapidly and repeatedly back and forth, from side to side, or up and down: the dog wagged his tail
- to shake (a finger) or nod (the head), as in summoning or reproving
- to move (the tongue) in talking, esp. in idle or malicious gossip
Origin of wagMiddle English waggen, probably from Old Norse vaga, to move back and forth, rock, akin to Old English wagian, to shake, totter from Indo-European base an unverified form we?h-, to move from source Classical Latin vehere, to carry
- to move rapidly and repeatedly back and forth, from side to side, or up and down: said as of a part of the body
- to keep moving in talk, esp. in idle or malicious gossip: said of the tongue
- to walk or move with a swaying motion; waddle
Origin of wagprobably short for obsolete waghalter, a gallows bird, applied to a joker, rogue ( from uncertain or unknown; perhaps wag + halter)
verbwagged, wag·ging, wags
- To move briskly and repeatedly from side to side, to and fro, or up and down: The dog's tail wagged.
- To move rapidly in talking. Used of the tongue.
- Archaic To be on one's way; depart.
Origin of wagMiddle English waggen ; see wegh- in Indo-European roots.
Origin of wagPerhaps from wag 1
(third-person singular simple present wags, present participle wagging, simple past and past participle wagged)
Middle English waggen, noun wagge, feminine root of Old English waian, (Middle English noun wae) to oscillate, shake. Compare the Old English verb waÄ¡ian
The verb may be regarded as an iterative or emphatic form of waian waw, verb, which is often nearly synonymous; it was used, e.g., of a loose tooth. Parallel formations from the same root are the Old Norse vagga feminine, cradle (Swedish vagga, Dutch vugge), Swedish vagga (“to rock a cradle"), early modern German waggen (dialectal German wacken) to waver, totter. Compare waggle, verb