I’d managed to uncover a lot of the Etymology paragraphs, without realising they were about the Etymology, so I had lots of stuff about Germanic languages, Old English, Middle English, Old Norse, 16th Century etc.
Only by plugging away there did I get to ‘also known as (redacted) in American English’ at the very top of the page and that got me the answer.
I’m 130 guesses into today’s. Based on what isn’t a hit I know it can’t be the thing I’m skirting around, but then because of what IS there I can’t really see what else might fit.