Lewis Short
lībum | lībus (noun M.n) : (, m., Nigid. ap. Non. 211, 31), , n. libo; cf. Varr. L. L. 4, 22
* A cake, pancake of meal, made with milk or oil, and spread with honey, Cato, R. R. 75: rustica liba,Ov. F. 3, 670: adorea liba per herbam Subiciunt epulis,Verg. A. 7, 109; Ov. F. 3, 761: plena domus libis venalibus,Juv. 3, 187.—Often used in offerings to the gods: liba absoluta esse et rem divinam paratam,Varr. R. R. 2, 8, 1: suum Baccho dicemus honorem, ... et liba feremus,Verg. G. 2, 394; Tib. 1, 7, 54; 1, 10, 23; Hor. Ep. 1, 10, 10: melle pater (Bacchus) fruitur, liboque infusa calenti Jure repertori candida mella damus,Ov. F. 3, 761: haec te liba, Priape, quot annis Exspectare sat est,Verg. E. 7, 33. It was customary to offer a cake to the gods on one's birthday, Juv. 16, 38.— Hence, quinquagesima liba,a cake offered to the gods on one's fiftieth birthday,Mart. 10, 24, 4.—In masc.: faciat libos quatuor, Nigid. ap. Non. 211, 31.
Charlton T. Lewis, Charles Short, A Latin Dictionary