wiggle (v.) Look up wiggle at Dictionary.com
early 13c., perhaps from Middle Dutch or Middle Flemish wigelen, frequentative of wiegen "to rock," from wiege "cradle" (cf. Old High German wiga, German Wiege, Old Frisian widze), from PIE root *wegh- "to move" (see weigh). Related: Wiggled; wiggling. The noun is attested from 1816.