Where does “crisma” come from?

crisma (English) comes from Latin chrisma, from Ancient Greek χρῖσμα, from Ancient Greek χρίω, from Proto-Indo-European gʰrēy-, from Proto-Indo-European gʰer- — to rub; to stroke; to grind.

Ancestry of “crisma”, step by step

Step	Language	Word	Meaning
1	Latin	chrisma	anointing, unction
2	Ancient Greek	χρῖσμα	anointing, unction; wall coating, plaster
3	Ancient Greek	χρίω	to rub or smear (especially the body) with oil or unguents; to anoint
4	Proto-Indo-European	gʰrēy-	to smear; to paint, streak, smear
5	Proto-Indo-European	gʰer-	to rub; to stroke; to grind

Every word from Proto-Indo-European gʰer- →Every word from Proto-Indo-European gʰrēy- →Every word from Ancient Greek χρίω →