Where does “keres” come from?

keres (Cornish) comes from Proto-Brythonic kėres, from Proto-Celtic keresyā, from Vulgar Latin ceresia, from Latin ceresium, from Latin cerasium, from Ancient Greek κεράσιον, from Ancient Greek κερασός, from Akkadian ???? — pear-tree.

keres (Cornish): cherries

Definitions

cherries

Ancestry of “keres”, step by step

Step	Language	Word	Meaning
1	Proto-Brythonic	kėres	cherry
2	Proto-Celtic	keresyā	—
3	Vulgar Latin	ceresia	—
4	Latin	ceresium	—
5	Latin	cerasium	cherry, fruit of the cherry tree
6	Ancient Greek	κεράσιον	cherry; cherry tree
7	Ancient Greek	κερασός	bird cherry, "Prunus avium"
8	Akkadian	????	pear-tree

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