Tiberis

Etymology
A pre-Roman name, suggested origins include:


 * From . Cognate with 🇨🇬 (cf. Etruscan praenomen Thefarie <, equivalent to Latin ). *Tiβeris and *Tiferis may come from the same root as , from , a fossilised locative form of , from . See Thames.
 * From, or otherwise from its same ultimate source, . See Dover.
 * From, found in hydronyms. This could correspond to the Umbrian counterpart  with the eastern Italic sound shift bh > f.

More at Tiber.

Proper noun

 * 1) The Tiber River, which flows through Rome