1650s, wabble, probably from Low German wabbeln "to wobble;" cognate with Old Norse vafla "hover about, totter," related to vafra "move unsteadily," from Proto-Germanic *wab- "to move back and forth," perhaps from PIE *webh- "to weave" (see waver). Form with -o- is from 1851. Related: Wobbled; wobbling. The noun is attested from 1690s.
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