Recent paper (behind paywall) An Alternative to ‘Celtic from the East’ and ‘Celtic from the West’, by Patrick Sims-Williams Camb. Archaeol. J (2020) First View.
NOTE. For those who don’t have access to it, you can check other recent similar papers by the same author, like Sims-Williams (2009, 2012, 2017).
Interesting excerpts (emphasis mine):
(…) there have been three main stages of scholarship: (1) the Celts are identified with the Hallstatt and La Tène ‘cultures’ of the first millennium BC; (2) then the discovery of contemporary Celtic language inscriptions (Lepontic and Celtiberian) in the ‘wrong’ areas
… Read the rest “European hydrotoponymy (VII): Celtic From the West or the East?”
There is overwhelming evidence that the oldest hydrotoponymic layer in Italy (and especially Etruria) is of Old European nature, which means that non-Indo-European-speaking (or, at least, non-Old-European-speaking) Etruscans came later to the Apennine Peninsula.
Furthermore, there is direct and indirect linguistic, archaeological, and palaeogenomic data supporting that the intrusive Tursānoi came from the Aegean during the Late Bronze Age, possibly through the Adriatic, and that their languages spread to Etruria and probably also to the eastern Alps.
The following are translated excerpts (emphasis mine) from Lenguas, genes y culturas en la Prehistoria de Europa y … Read the rest “European hydrotoponymy (V): Etruscans and Rhaetians after Italic peoples”