Lewis & Short

† cĭdăris, is, f. (cĭdar, aris, n., Auct. Itin. Alex. M. p. 64 Mai) [Persian; Heb. [??]; Gr. κίδαρις], = τιάρα ὀρθή,

  1. I. an ornament for the head of Persian kings, a diadem, tiara: cidarim Persae vocabant regium capitis insigne, Curt. 3, 3, 19.
    1. B. The crown of the Prince of Israel (in prophetic vision), Vulg. Ezech. 21, 26.
  2. II. A head-dress of the high-priest of the Jews (cf. the Talmud, [??] [??]), Hier. Ep. 64, n. 3; id. in Ezech. 7, 21, 25; Lact. 4, 14, 8 (as transl. of the Heb. [??], Vulg. Zach. 3, 5); Vulg. Lev. 8, 9; 16, 4 al.