pretiōsus adj. with comp. and sup. pretium, of great value, costly, precious: equus: proles pretiosior aere, O.: Ingenium pretiosius auro, O.: res pretiosissimae: loca metallo, rich in, O.

—Costly, dear, expensive: (vini) senectus, i. e. the costly old wine, Iu.: emptor, i. e. at great cost, H.