Lewis & Short

1. obba, ae, f., a vessel large at the bottom, a beaker, noggin; a decanter: obba poculi genus, quod nunc ubba dicitur. Varro: obbas et Cumanos calices, Non. 146, 8 sq.; cf.: obba poculi genus vel ligneum vel ex sparto. Varro (here follows the passage just cited): idem Epistola ad Marullium: utrum meridie an vesperi libentius ad obbam accedas, Non. 545, 2 sq.; Pers. 5, 148; Tert. Apol. 13. (But in Plin. 18, 7, 10, § 53, the correct read. is phoba, v. Sillig. ad h. l.)