נָתַר nâthar (H5425)

to jump, i.e. be violently agitated; causatively, to terrify, shake off, untie

1) to start up, tremble, shake, spring up 1a) (Qal) to start up 1b) (Piel) to leap 1c) (Hiphil) to cause to start up 2) to loose, let loose, undo, be free, be loose 2a) (Hiphil) 2a1) to unfasten, loosen 2a2) to set free, unbind

a primitive root;