Basil (name)
The name Basil (/ˈbæzəl/; royal, kingly) comes from the male Greek name Vassilios (Greek:Βασίλειος, female version Bασιλική), which first appeared during the Hellenistic period. It is derived from "basileus" (Greek:βασιλεύς), a Greek word of pre-Hellenic origin meaning "king", from which words such as basilica and basilisk (via Latin) as well as the eponymous herb (via Old French) derive, and the name of the Italian region Basilicata, which had been long under the rule of the Byzantine Emperor (also called basileus).