Where does “kottana” come from?

kottana (Old High German) comes from Latin cotoneum, from Latin cydonia, from Ancient Greek Κυδωνία — Cydonia; quince-tree.

Ancestry of “kottana”, step by step

Step	Language	Word	Meaning
1	Latin	cotoneum	a quince
2	Latin	cydonia	—
3	Ancient Greek	Κυδωνία	Cydonia; quince-tree

kottana — Etymology, Origin & Word History | Etymology Explorer