Where does “herm” come from?

herm (English) comes from English Hermes, from Ancient Greek Ἑρμῆς — Mercury; Hermes, the hellenic god of trade and...

herm (English): A rectangular pillar bearing a bust of Hermes,...

Definitions

Step	Language	Word	Meaning
1	English	Hermes	A head or bust on a square base, often...
2	Ancient Greek	Ἑρμῆς	Mercury; Hermes, the hellenic god of trade and...