unworthy (adj.)youdaoicibaDictYouDict[unworthy 词源字典]
mid-13c., unwurði, from un- (1) "not" + worthy (adj.). Similar formation in Middle Dutch onwerdich, Dutch onwaardig, Middle Low German unwerdich, Old High German unwirdig, Old Norse uverðugr. Old English had unweorðlic. Related: Unworthiness.[unworthy etymology, unworthy origin, 英语词源]