Proto-IE: *weip-, -b-
Meaning: to oscillate, to swing
Tokharian: B wip- 'shake' (Adams 603)
Old Indian: vepate, -ti `to tremble, shake, vibrate', vípra- `stirred or excited, inspired'
Avestan: vip- `werfen, entsenden (Samen)'
Latin: vibrāre `in zitternde setzen, sich zitternd bewegen'
Russ. meaning: волноваться, раскачиваться
Comments: In Balt. contam. of 2 roots -- see *(s)weip-, *(s)weib- 'to twist, wind around'.
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