xaivu can be found in the old Greek language after a lot of online searching which can mean amongst other things "(Xáω,) to be empty, or open". It doesn't have a true meaning as it's a made-up word by a friend of the artist Xaivu who then decided to use the name of their trademark.
If you still require a definition, here's one by @xaivu themself: the feeling of emptiness and paranoia after waking up from a nightmare.
xaivu isn't an adjective or a verb, it's name
by xaivu March 15, 2020
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