Lewis & Short

† cē̆drus, i, f., = κέδρος,

  1. I. the cedar, juniper-tree: Juniperus oxycedrus, Linn., which has a very fragrant wood, and furnishes an oil that protects from decay, Plin. 13, 5, 11, § 52; 16, 40, 76, § 203; Col. 9, 4, 3; Vitr. 2, 9, 13.
    Of cedar-wood, Verg. G. 3, 414; id. A. 7, 13; 7, 178; Curt. 5, 7, 5; 8, 10, 8; Suet. Calig. 37.
    Hence,
  2. II. Meton., cedar-oil (with which the backs of books were usually anointed to preserve them from moths and decay): liber flavus cedro, Ov. Tr. 3, 1, 13: perunctus cedro, Mart. 3, 2, 7; cf. Becker, Gall. 2, p. 219.
    Hence, poet.: carmina linenda cedro, i. e. worthy of immortality, Hor. A. P. 332: cedro digna locutus, Pers. 1, 42.