Weimar Etymology

I was trying to add the etymology Weimar that is listed on the wiki page:"High German wīh- (holy) and -mari (standing water, swamp)." Why was this reverted?

Firstly, you listed Proto-Germanic words, but the name obviously did not exist yet in Proto-Germanic. Secondly, there is no such word as "mari". There are māri (“known, famous”) and māri (“tale, message”), but those have nothing to do with this name. Thirdly, even Wikipedia itself gives multiple explanations. The actual attested form is Wīmari, so that is what should be in the etymology.