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1650s, 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" (see waver). The noun is attested from 1690s.
wobble wob·ble (wŏb'əl)
A movement or rotation with an uneven or rocking motion or an unsteady motion from side to side.
The ability of one tRNA anticodon to recognize two mRNA codons, as in the third base of a tRNA anticodon pairing with any of a variety of bases that occupy the third position of different mRNA codons instead of pairing according to base pairing rules.