H7477. raal
[רָעַל] verb quiver, shake, reel (Aramaic רְעַל, , quiver, shake, tremble; Arabic the hanging part of a sheep's split ear, also (Frey) a kind of veil of which a part hangs down in front; dangling; Lihyanian has proper name רעל DHMEpigr. Denkm. Arabic 38); —
Hoph`al Perfect3plural הָרְעָ֑לוּ הַבְּרשְׁים [Nahum 2:4] are made to quiver. See also [עָרַל].