Entry 2 senses · 2 variants Webster, 1913 Lith /(līth)/ · IPA /lɪθ/ 3d pers. sing. pres. n. 01 3d pers. sing. pres. 3d pers. sing. pres. of Lie, to recline, for lieth. 1. 3d pers. sing. pres. of Lie, to recline, for lieth.obs. See: Lie 02 n. A joint or limb; a division; a member; a part formed by growth, and articulated to, or symmetrical with, other parts. 1. A joint or limb; a division; a member; a part formed by growth, and articulated to, or symmetrical with, other parts.