Where does “ημικρανία” come from?

ημικρανία (Greek) comes from Ancient Greek ἡμικρανία, from Ancient Greek κρανίον, from Ancient Greek κάρα, from Proto-Hellenic *kárahə.

ημικρανία (Greek): migraine

Definitions

Step	Language	Word	Meaning
1	Ancient Greek	ἡμικρανία	pain on one side of the head or face
2	Ancient Greek	κρανίον	skull; head
3	Ancient Greek	κάρα	head, face; the head or top of anything, as of a...
4	Proto-Hellenic	*kárahə	—