נָעַר nâʻar (H5287)

to tumble about

1) to shake, shake out or off 1a) (Qal) to shake out, show emptiness 1b) (Niphal) 1b1) to be shaken 1b2) to shake oneself 1c) (Piel) to shake off or out 1d) (Hithpael) to shake oneself

a primitive root (probably identical with נָעַר (H5286), through the idea of the rustling of mane, which usually accompanies the lion's roar);