Lewis Short
(adjective) : dē-lumbis, e, lumbus
* Lamed in the loins, lamed (post-Aug. and very rare).
* Lit.: coturnix,Plin. 10, 33, 51, § 103.
* Trop., weakened, enervated; weak, feeble: summā delumbe salivā,Pers. 1, 104: dietio,Sid. Ep. 8, 16.
Charlton T. Lewis, Charles Short, A Latin Dictionary