Sinnus

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• (Classical Latin) IPA^(key): [ˈsɪn.nʊs]
• (modern Italianate Ecclesiastical) IPA^(key): [ˈsin.nus]

Sinnus m sg (genitive Sinnī); second declension

1. One of the most important tributaries of the Padus, now the river Senio

Second-declension noun, singular only.

• flumen Sinnum flumen in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
• “Padus”, in William Smith, editor (1854, 1857), A Dictionary of Greek and Roman Geography, volume 1 & 2, London: Walton and Maberly