Flusor

From Oscan 𐌅𐌋𐌖𐌖𐌔𐌀 (vluusa), presumably related to fluo (“I flow”), but the s remains unexplained; possibly introduced through rhotacism. The river names Flosis (modern Potenza), Flussorius, Fiastra, and Flesor could be related.

• (Classical Latin) IPA^(key): [ˈfɫuː.sɔr]
• (modern Italianate Ecclesiastical) IPA^(key): [ˈfluː.s̬or]

Flūsor m sg (genitive Flūsōris); third declension

1. a river in Picenum that flows into the Adriatic Sea, also called Cluentus, now the river Chienti

Third-declension noun, singular only.

• Flusor in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
• “Picenum”, in William Smith, editor (1854, 1857), A Dictionary of Greek and Roman Geography, volume 1 & 2, London: Walton and Maberly
• Verner's Law in Italy: An Essay in the History of the Indo-European Sibilants, p. 46