gāʿaš גָּעַשׁ ‘to shake’ (Hebrew)

Etymology^?: a primitive root to agitate violently

gāʿaš v
1) to shake, quake
 1a) (Qal) to shake
 1b) (Pual) to be shaken up, convulsed
 1c) (Hithpael) to shake back and forth, toss or reel to and fro
 1d) (Hithpoel) to reel to and fro