Sheave (?), n. [Akin to OD. schijve orb, disk, wheel, D. schiff, G. scheibe, Icel. skīfa a shaving, slice; cf. Gr. ��� a staff. Cf. Shift, v., Shive.] A wheel having a groove in the rim for a rope to work in, and set in a block, mast, or the like; the wheel of a pulley.
Sheave hole, a channel cut in a mast, yard, rail, or other timber, in which to fix a sheave.