Senensis
Could not find Senensi in Logeion dictionaries.
Senensi proper-name adjective neuter dative singular, proper-name adjective feminine ablative singular, proper-name adjective feminine dative singular, proper-name adjective masculine ablative singular, proper-name adjective masculine dative singular, proper-name adjective neuter ablative singular of Senensis
Sēnensis, e, v. Sena.
Sēnēnsis, e, s. Sēna.
Sēnēnsis, e, de Séna [Étrurie] : Cic. Br. 73.