出典:Wiktionary
From Etruscan (persu), though the ultimate origin is uncertain. Possibly a late, unaspirated version of (φersu, “mask”).
The name has been confused with Ancient Greek Περσεύς (Perseús, “Perseus”) because of some Etruscan artifacts transcribing the hero's name with the same spelling.
Persius m sg (genitive Persiī または Persī); second declension