waver v.

"move back and forth," Old English wafian "to wave, fluctuate" (related to wæfre "wavering, restless, unstable"), from Proto-Germanic *wab- (source also of Old Norse vafra "to hover about," Middle High German waben "to wave, undulate"), possibly from PIE root *(h)uebh- "to move to and fro; to weave" (see weave (v.)). Transitive sense is from mid-15c.; meaning "to make a sign by a wave of the hand" is from 1510s. Related: Waved; waving.

I was much further out than you thought

And not waving but drowning.

[Stevie Smith]

Germanic derivational suffix of verbs, indicating repeated or diminutive action, as in clamber, clatter, flicker (v.), glitter (v.), quaver, shimmer, slumber (v.), wander, waver. Compare also snaker (Middle English snakeren) "to sneak, slink" (c. 1200), from Old Norse.