Where does “Perseus” come from?

Perseus (Latin) comes from Ancient Greek Περσεύς, from Ancient Greek πέρθω, from Proto-Indo-European bʰerdʰ- — to cut; cut.

Ancestry of “Perseus”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	Περσεύς	Perseus
2	Ancient Greek	πέρθω	to sack, ravage, destroy ; to slay; to get by...
3	Proto-Indo-European	bʰerdʰ-	to cut; cut

Perseus — Etymology, Origin & Word History | Etymology Explorer