begotten (adj.)youdaoicibaDictYouDict[begotten 词源字典]
late 14c., past participle adjective from beget.[begotten etymology, begotten origin, 英语词源]
misbegotten (adj.)youdaoicibaDictYouDict
"bastard, illegitimate," 1550s, past participle adjective from obsolete misbeget (c. 1300); see mis- (1) + beget.
unbegotten (adj.)youdaoicibaDictYouDict
1530s, from un- (1) "not" + begotten.