Every Pokémon seems have something that their name and appearance are based off of, and while some are more obvious than others it is still interesting to figure out and learn more about. In Absol's case I am more than curious so here are some interesting things that I've discovered.
Firstly, Absol's name may come from the word bussō (meaning dangerous in Japanese). Another possibility is that it could be a combination of Ab (prefix meaning away or departure) and sol (Latin for sun), which would refer to its Dark-type nature. It could also be a shortened word for absolution or absolve which could refer to Absol's ability to foretell disasters. Meaning that while it can foretell them, it does not cause them, which would then absolve it of all guilt. Lastly, it could also come from the word Absalom, a name which, according to in Jewish tradition, is said to bring bad luck, something many people would consider Absol to bring whenever it was around.
Next is Absol's appearance. There are several theories as to what it could be based off of, however the theory that feels most realistic for Absol is that it could be based on the Bai Ze of Chinese mythology (also known as the kutabe or hakutaku) which is a beast from Chinese legend whose name literally means white marsh. It is generally described as a white beast that can take the form of a large mountainous lion, distinguished by having one or two horns on its head. They are also said to have an extra eye on their head or back. It is considered to be intelligent and gifted with the ability to understand human speech. It was also claimed to be able to predict a plague that would sweep through the Toyama Prefecture of Japan. Sounds a lot like Absol, doesn't it?
Another thing I feel worth mentioning is that Absol's appearance could be based off of a sphinx. While I haven't really noticed this, a conversation with a friend makes it seem plausible. Various artwork and figures of Absol seem to have similar poses to that of a classical sphinx, and apparently it has an almost human-like face, but I have not been able to see it. All I see is cat. We both decided anyway that a realistic Absol with a human-like face would be terrifying. *shudder*