Where does “cerisier” come from?

cerisier (French) comes from French cerise, from Spanish cereza, from Portuguese cereja, from Vulgar Latin ceresia, from Latin ceresium, from Latin cerasium, from Ancient Greek κεράσιον, from Ancient Greek κερασός — pear-tree.

cerisier (French): cherry tree

Definitions

cherry tree

Ancestry of “cerisier”, step by step

Step	Language	Word	Meaning
1	French	cerise	cerise colour; cherry; cerise
2	Spanish	cereza	cherry red; cherry
3	Portuguese	cereja	cherry
4	Vulgar Latin	ceresia	—
5	Latin	ceresium	—
6	Latin	cerasium	cherry, fruit of the cherry tree
7	Ancient Greek	κεράσιον	cherry; cherry tree
8	Ancient Greek	κερασός	bird cherry, "Prunus avium"
9	Akkadian	????	pear-tree

Every word from Akkadian ???? →Every word from Ancient Greek κερασός →Every word from Ancient Greek κεράσιον →