According to the Italian counterpart to this page (https://it.wikipedia.org/wiki/Calabritto), the name "Calabritto" derives from the Latin "kalabrix," a thorny plant similar to the hawthorn, but the claim is not supported by an authoritative citation and seems dubious.
The name "Calabritto" is claimed to originate from the Latin word "kalabrix," which refers to a thorny plant similar to the hawthorn.