"thin, spare, with little flesh or fat," O.E. hlæne, possibly from hlænan "cause to lean or bend," from P.Gmc. *khlainijan, which would make it related to O.E. hleonian (see
lean (v.)). But perhaps rather from a PIE *qloinio- (cf. Lith. klynas "scrap, fragment," Lettish kleins "feeble").