Lewis & Short

1. jŭvencus, a, um

    (
  1. I. gen. plur. juvencūm, Verg. A. 9, 609), adj. [contr. from juvenicus, from juvenis], young (mostly poet.): ecus, Lucr. 5, 1074: gallinae, Plin. 10, 53, 74, § 146.
    More freq.,
  2. II. Subst.
    1. A. jŭvencus, i, m.
      1. 1. Sc. bos, a young bullock: aspice, aratra jugo referunt suspensa juvenci, Verg. E. 2, 66; 7, 11; id. A. 6, 38: est in juvencis, est in Equis patrum virtus, Hor. C. 4, 4, 30: fessi juvenci, Ov. M. 14, 648; Varr. R. R. 2, 5, 6.
        1. b. Poet. transf., neat’s leather: clipeum vestisse juvenco, Stat. Th. 3, 591.
      2. 2. Sc. homo, a young man: te suis matres metuunt juvencis, Hor. C. 2, 8, 21.
    2. B. jŭvenca, ae, f.
      1. 1. (Sc. bos.) A young cow, heifer: pascitur in magna Sila formosa juvenca, Verg. G. 3, 219; Hor. C. 2, 5, 6; id. Ep. 1, 3, 36; Juv. 6, 49.
      2. 2. Sc. femina, a girl: Graia, i. e. Helen, Ov. H. 5, 117; Val. Fl. 4, 350.