Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

1. lībrārĭus, a, um, adj. [libra].

  1. I. Of or containing a pound, of a pound weight (post-Aug.): frusta, Col. 12, 53, 4: as, Gell. 20, 1, 31.
  2. II. Subst.
    1. A. lībrārĭus, ii, m., a weight, the sixteenth part of a modius, = sextarius: sextarius aequus aequo cum librario siet, sexdecimque librarii in modio sient, Plebisc. ap. Paul. ex Fest. p. 246 Müll.
    2. B. lībrārĭa, ae, f., she that weighed out the wool to the female slaves, a forewoman, head-spinner, called also lanipendia, Juv. 6, 475 (by others referred to 2. librarius); Inscr. Orell. 4212.

2. lĭbrārĭus, a, um, adj. [3. liber],

  1. I. of or belonging to books: scriba librarius, a copyist, transcriber of books, Varr. R. R. 3, 2, 14; Cic. Agr. 2, 13, 32: libraria taberna, a bookseller’s shop, Cic. Phil. 2, 9, 21: scriptor, a transcriber of books, Hor. A. P. 354: atramentum, ink for writing books, Plin. 27, 7, 28, § 52.
    Hence,
  2. II. Subst.
    1. A. lĭ-brārĭus, i, m.
      1. 1. A transcriber of books, a copyist, scribe, secretary, Cic. Agr. 2, 5, 13: librum ut tuis librariis daret, id. Att. 12, 40, 1: librarii mendum, Liv. 38, 55, 8: legionis, the secretary of the legion, Inscr. ap. Grut. 365, 1; cf. Sen. Contr. 1, 7, 18; Juv. 9, 109.
      2. 2. A bookseller, Sen. Ben. 7, 6, 1; Gell. 5, 4, 2; 18, 4, 1; Sulp. Sev. Dial. 1, 23, 4.
      3. 3. (Sc. doctor.) An elementary teacher, Hier. Ep. 107, 4.
    2. B. lĭbrārĭa, ae, f.
      1. 1. A female scribe: (Parcae) utpote librariae Superum archivumque custodes, Mart. Cap. 1, § 65 (perh. also Juv. 6, 476; cf. sub 1. librarius).
      2. 2. A bookseller’s shop; in libraria, ego et Julius Paulus poëta consederamus, Gell. 5, 4, 1: quispiam in libraria sedens, id. 13, 30, 1.
    3. C. lĭbrārĭum, ii, n., a place to keep books in, a bookcase, bookchest: exhibe librarium illud legum vestrarum, Cic. Mil. 12, 33: libraria omnia exurerent, Amm. 29, 2, 4.