זָלַל zâlal (H2151)

to shake (as in the wind), i.e. to quake; figuratively, to be loose morally, worthless or prodigal

1) to be worthless, be vile, be insignificant, be light 1a) (Qal) 1a1) to be worthless, be insignificant 1a2) to make light of, squander, be lavish with 2) to shake, tremble, quake 1a) (Niphal) to shake, quake

a primitive root (compare זוּל (H2107));