Fist

n. [A-S. fyst, O. H. Ger. fūst, M. H. Ger. vūst, D. vuist, N. H. Ger. faust, allied to Slav. pjasti.] The hand with the fingers doubled into the palm; the hand closed tightly, especially as clinched for the purpose of striking a blow.

Who grasp the earth and heaven with my fist. Herbert.