Lewis & Short

sabbătum, i, n., and, more freq., sab-băta, ōrum, n., = σάββατα (orig. Heb. [??]).

  1. I. Lit.
    1. A. In gen., the day of rest among the Jews, the Sabbath; considered by the Romans to have been ordained as a fast-day. Plur. form, Just. 36, 2, 14; August. ap. Suet. Aug. 76; Plin. 31, 2, 18, § 24; Vulg. Matt. 12, 1 et saep.
    2. B. In partic., as a name for the seventh day of the week, Saturday, Suet. Tib. 32; Sen. Ep. 95 med.
      Sing.       form, Hier. Ep. 121, 4; Vulg. Matt. 12, 1; id. Luc. 13, 14; id. Johan. 9, 16.
  2. II. Transf., of other Jewish holidays, Ov. R. Am. 220; Pers. 5, 184; Juv. 6, 159: tricesima, i. e. the new moon (said poet. for a Jewish holiday in general), Hor. S. 1, 9, 69; cf. Orell. and Wüstem. ad Heind. ad h. 1.