Where does “opsonin” come from?

opsonin (English) comes from Ancient Greek ὀψωνέω, from Ancient Greek ὠνέομαι, from Ancient Greek ὦνος, from Proto-Indo-European wosno-, from Proto-Indo-European wesno- — price.

opsonin (English): Any chemical produced by the body, including...

Definitions

Any chemical produced by the body, including...

Ancestry of “opsonin”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	ὀψωνέω	to buy fish; to buy victuals in general
2	Ancient Greek	ὠνέομαι	to buy, purchase
3	Ancient Greek	ὦνος	price
4	Proto-Indo-European	wosno-	—
5	Proto-Indo-European	wesno-	price

Words derived from “opsonin”

opsoniferous

Every word from Proto-Indo-European wesno- →Every word from Proto-Indo-European wosno- →Every word from Ancient Greek ὦνος →