Lewis & Short

strēna, ae, f. [Sabine].

  1. I. Lit., a sign, prognostic, omen (Plautin.), Plaut. Stich. 3, 2, 8; 5, 2, 24.
  2. II. Transf., a new-year’s present given for the sake of the omen (syn. xenium; cf. the Fr. étrennes), Suet. Calig. 42; id. Aug. 57; id. Tib. 34; Pompon. ap. Non. 17, 1 al.; cf.: strenam vocamus, quae datur die religioso, ominis boni gratiā, Fest. s. h. v. p. 313 Müll.; Aus. Ep. 18, 4.