c.1400, of uncertain origin, probably from O.E. lemphealt "halting, lame, limping," which has a lone cognate in the rare M.H.G. limphin, and probably ult. is from PIE base *lomb- "slack, loose, to hang down" (cf. Skt. lambate "hangs down," L. limbus "hem, border," M.H.G. lampen "to hang down").
1706, "flaccid, drooping," of obscure origin, perhaps related to limp (v.).