lumbus (noun M) :
* A loin.
* Lit.: At Edepol nos (velimus) tibi in lumbos linguam atque oculos in solum (decidisse),Plaut. Poen. 3, 1, 68: exporgi meliust lumbos,id. Ps. prol. 24 (1); id. Ep. Grex, 2: lumborum tenus,Cic. Arat. 82: usque ad lumbos, Quint. 11, 3, 131: nautaeque caput lumbosque saligno Fuste dolat,Hor. S. 1, 5, 22: aprugnus,Plin. 8, 57, 78, § 210; 20, 3, 8, § 14: magno premit populus agmine lumbos,Juv. 3, 244.—As food: caprigeni lumbi,Macr. S. 2, 9, 12.—Prov.: lumbis patris habere se putat digitos grossiores, said of those who regard themselves as superior to their forefathers (cf. 1 Kings, 12, 10),Hier. Ep. 82, n. 3.
* Transf.
* The genital organs, Pers. 1, 20; 4, 35; Juv. 9, 59.—Hence, in eccl. Lat.: in lumbis patris,yet unborn,Vulg. Heb. 7, 10: reges de lumbis tuis egredientur,id. Gen. 35, 11.
* That part of a vine from which the branches spring, Col. Arbor. 3; Plin. 17, 23, 35, n. 26, § 210.

s. TLL