foundling (n.)youdaoicibaDictYouDict[foundling 词源字典]
"deserted infant," c. 1300, from Middle English founden "found," past participle of finden (see find (v.)) + diminutive suffix -ling. Compare Dutch vondeling, German Findling. Middle English also had finding in this sense (late 14c.).[foundling etymology, foundling origin, 英语词源]