> I think some janky editor messed with it last year and nobody has noticed or checked the sources.

Wikipedia isn't concerned with that kind of thing.

Compare https://en.wikipedia.org/wiki/Absolute_configuration , where the article states "R and S refer to rectus and sinister, Latin for right and left, respectively", despite the facts that (1) it's not like the Latin word for right is obscure; (2) the claim was highlighted as false (in a different section of the article, where it still also appears) on the talk page in 2018.