quinceyoudaoicibaDictYouDict[quince 词源字典]
quince: [14] Etymologically, the quince is the ‘fruit from Khaniá’, a port on the northwest coast of Crete from which quinces were exported. In ancient times Khaniá was known as Cydonia (in Greek Kudónia), so the Greeks called the fruit mélon Kudónion ‘Cydonian apple’. Latin took the term over as cydōneum, later cotōneum, which passed into English via Old French cooin. The original English form of the word was quoyn, later quyn, but already by the early 14th century its plural quyns was coming to be regarded as a singular – whence modern English quince.
[quince etymology, quince origin, 英语词源]
quince (n.)youdaoicibaDictYouDict
early 14c., plural of quoyn, from Old French cooin (Modern French coing), from Vulgar Latin codoneum, from Latin cotoneum malum "quince fruit," probably a variant of cydonium malum, from Greek kydonion malon "apple of Kydonia" (modern Khania), ancient seaport city in Crete.

The plant is native to Persia, Anatolia, and Greece; the Greeks imported grafts for their native plants from a superior strain in Crete, hence the name. Kodu- also was the Lydian name for the fruit. Italian cotogno, German Quitte, etc. all are ultimately from the Greek word.