How do you spell Eddies

Available Definitions:
1)  n. - A current of air or water running back, or in a direction contrary to the main current.
2)  n. - A current of water or air moving in a circular direction; a whirlpool.
3)  v. i. - To move as an eddy, or as in an eddy; to move in a circle.
4)  v. t. - To collect as into an eddy.