Where does “ἕρπυλλος” come from?

ἕρπυλλος (Ancient Greek) comes from Ancient Greek ἕρπω, from Proto-Indo-European *sérpeti.

ἕρπυλλος (Ancient Greek): wild thyme

Definitions

Step	Language	Word	Meaning
1	Ancient Greek	ἕρπω	to move slowly, walk; crawl, creep, slink; I go...
2	Proto-Indo-European	*sérpeti	—

ἕρπυλλος — Etymology, Origin & Word History | Etymology Explorer