Look, I have a character called Sarin, and occasionally some smartass is like "hurr hurr that's a nerve gas", but you know what happens with the vast majority of people? They have no idea Sarin is a nerve gas any more than I did when I named her that.
I have a character called Subo, which apparently means "spoon feed" in Tagalog.
You know whose name everyone actually memes on though? Urien. Which is a real name, and doesn't mean anything, people just keep pointing out that it's an anagram of "urine".
So Xan is probably fine. 