O / obsōnātor
noun

obsōnātor

gen. obsōnātōris · gender masculine · decl. 3rd
a buyer of victuals; a caterer, purveyor; in lemm.;
a buyer of victuals; a caterer, purveyor: obsonator optimus, Plaut. Mil. 3, 1, 73; Mart. 14, 217 in lemm.; Sen. Ep. 47, 8.