medlar (n.)youdaoicibaDictYouDict[medlar 词源字典]
"small fruit-bearing tree," mid-14c. (in reference to the fruit itself), from Old French medler, variant of mesple, from Latin mespila "fruit of the medlar," from Greek mespilion, a foreign word of unknown origin. The Old English name was openærs, literally "open-arse."[medlar etymology, medlar origin, 英语词源]