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.

2. Persa, ae, f., = Πέρση, daughter of Oceanus, mother of Circe, Perses (the father of Hecate), Æetes, and Pasiphăe, by the Sungod, Hyg. Fab. praef. fin.; also called Perseis, Cic. N. D. 3, 19, 48.
Hence,

  1. A. Per-sēĭus, a, um, adj., of or belonging to Persa, Persean: Perseia Hecate, Val. Fl. 6, 495: proles, i. e. Æetes, id. 5, 582.
  2. B. Persēĭs, ĭdis, f., the female descendant of Persa, Hecate, Stat. Th. 4, 481.
    Adj.: Perseides herbae, i. e. magic herbs, Ov. R. Am. 263.
    Perseis (sc. Musa), the title of a Latin poem, Ov. P. 4, 16, 25.

Persēĭus, a, um, v. 2. Persa, A., and 1. Perseus, B. 2.