How do you spell Flail

Available Definitions:
1) n. - An instrument for threshing or beating grain from the ear by hand, consisting of a wooden staff or handle, at the end of which a stouter and shorter pole or club, called a swipe, is so hung as to swing freely.
2) n. - An ancient military weapon, like the common flail, often having the striking part armed with rows of spikes, or loaded.