Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Suessŭla, ae, f., a town of Campania, now Castel di Sessola, Liv. 7, 37; 8, 14; 23, 14; 23, 17; 23, 32; 24, 46.
Hence, Sues-sŭlāni, ōrum, m., the inhabitants of Suessula, Liv. 8, 14; Plin. 3, 5, 9, § 64; Inscr. Orell. 130; 2369.