supinate
vt., vi.
3nat#ed, 3nat#ing 5< L supinatus, pp. of supinare, to lay backward < supinus, SUPINE6 to rotate (the hand or forearm) so that the palm faces upward or forward See PRONATE (the opposite)
su#pi[na4tion
n.
The mnemonic is that in the supine position, the hand could hold soup.In the lower extremity, the ankle is displaced medially, in pronation it is rotated laterally.