Where does “splēn” come from?

splēn (Latin) comes from Ancient Greek σπλήν, from Ancient Greek σπληχ-.

Ancestry of “splēn”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	σπλήν	milt, spleen
2	Ancient Greek	σπληχ-	—

splēn — Etymology, Origin & Word History | Etymology Explorer