Lewis & Short

dī̆plŏïs, ĭdis, f., = διπλοΐς, a double robe to be wrapped around the body, a cloak, mantle, Sulpic. Sever. Hist. Sacr. 1, 35, 7; Vulg. Psa. 108, 28; id. Baruch, 5, 2; Acro on Hor. Ep. 1, 17, 25; Nov. ap. Non. 316, 5.