- nefandous (adj.)
[nefandous 词源字典]
- "not to be spoken of," 1630s, from Latin nefandous "unmentionable, impious, heinous," from ne-, negative particle, + fandus "to be spoken," gerundive of fari "to speak," from PIE root *bha- (2) "to speak, tell, say" (see fame (n.)).[nefandous etymology, nefandous origin, 英语词源]