On osu!, my name had initially been "Xuequinox", a name I used about 6 years ago now because apparently 8-years olds like me get fascinated by the word "equinox" and like the letter "x". I don't know what the "u" was for.
After a while I got tired of it, so I've changed it today!
I had been thinking about a producer name for about a year or two, since I didnt think I'd be comfortable with the name Xuequinox as something for people to try to spell and pronounce.
Eventually after a large period of time, I thought of using something more meaningful to express myself. A lot of the time, since depression was a thing, and apathy tends to drain you of emotion and energy, I felt like life felt... boring. I felt that life was just a greyscale palette. I came across a word that described the quality of lacking color-- "Achromatic".
I also felt pretty nice about the word "Anomaly". In spanish, it's "anomalia". Basically, by putting them together, I wanted it to define the irregular feeling of a colorless world, or the sort of feeling that says that you dont belong here, that you're the cause of that lack of color.
In a way, I meant for it to represent a bit of depression, but I thought it was an interesting concept on its own, and that it didn't have to represent my depression and apathy.
So far, my only problem with this is that it's a bit of a feminine name (since I'm a guy), with all the "a"s and the "-ia" at the end. I dont imagine many guys would have a name with "-ia" at the end.