According to a legend showed also on the coat-of-arms of the town, the
name Toro comes from the result of a fight between a bull and a lion:
the first would have defeated the second and gave its name to the
This fantasy story, anyways, is improbably.
A most reasonable explanation, in fact, is related to the morphology
of the town: Toro is placed on a sharp and round hill that, in the
later Latin, is translated as collis cacuminatus et rontundus.
A similar explanation is given by the "UTET Dictionary of toponymy":
"Toro is a town placed on 588 metres on the sea level and is far 13
kilometres from Campobasso; in dialect tùore comes from the Latin
torum, protrusions, but has also something in common with the
Neapolitan tuoro, hill…"