Where does “Tronto” come from?

Tronto (Italian) comes from Latin Truentus, from Proto-Indo-European drem- — to run.

Ancestry of “Tronto”, step by step

StepLanguageWordMeaning
1LatinTruentusOne of the most important rivers of Picenum, which flows into the Adriatic Sea near the city of Truentum, now the river Tronto
2Proto-Indo-Europeandrem-to run
Every word from Proto-Indo-European drem- →Every word from Latin Truentus →