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.

Sălăpĭa, ae (also contr. Sălpia, Vitr. 1, 4 fin.; cf. Σαλπία, App. B. Civ. 1, 52), f., a city in Daunian Apulia, now Salpi, Plin. 3, 11, 16, § 103; Liv. 24, 20; 27, 28.
Hence,

    1. 1. Sălăpīnus, a, um (also Sălpīnus, Luc. 5, 377 Cort. N. cr., and Sălpīni, Vitr. 1, 4 fin.), adj., of or belonging to Salapia, Salapian: palus, Luc. 5, 377.
      In plur.: Sălăpīni, ōrum, m., the inhabitants of Salapia, the Salapians, Cic. Agr. 2, 27, 71.
    2. 2. Sălăpĭtāni, ōrum, m., = Salapini, the inhabitants of Salapia, Liv. 27, 28.