Where does “lamellicorn” come from?

lamellicorn (English) comes from French lamellicorne, from Latin cornū, from Proto-Indo-European ḱerh₂- — head, top; horn.

lamellicorn (English): Having a group of flat lamellae on the end;...

Definitions

Step	Language	Word	Meaning
1	French	lamellicorne	—
2	Latin	cornū	—
3	Proto-Indo-European	ḱerh₂-	head, top; horn

lamellicorn — Etymology, Origin & Word History | Etymology Explorer