first-begotten Copy link Outline 1. (of two or more living children) major, maximus (natu)2. expr. by prīmus3. prīmōgĕnĭtus • first-begotten ; first-born 1. (of two or more living children) major, maximus (natu): v. elder, ELDEST. 2. expr. by prīmus: sows give the first teat to the f. of their litter, primis genitis (al. primogenitis) in quoque partu sues primas (mammas) praebent, Plin. 11, 40, 95: cf. first (adj. and adv.). 3. prīmōgĕnĭtus: His f. son, filius suus p., Lact.: Vulg. Matt. i. 25.