烏有

Etymology
Literally “not-have”; a fictional character in.

Noun

 * 1)  nonexistent person or thing; naught; nothing

Etymology
Ultimately from. May be a, considering that this is first cited in Japanese to a text from 1375.

Although this compound may appear to literally parse out to +, the  character was also used phonetically in Chinese with a separate sense of  or.

Noun

 * 1)  nonexistence, nothing

Idioms

 * : to return something to nothingness
 * : to consign something to nothingness