Lewis & Short

Tissē, ēs, f., a little town in Sicily, now Randazzo, Sil. 14, 267.
Hence, Tis-senses, ĭum, m., the inhabitants of Tisse, Cic. Verr. 2, 3, 38, § 86; for which: Tis-sinenses, Plin. 3, 8, 14, § 91.