A better translation is "Frankish language". The term predates "France" as we know it. Frankish was a Germanic language that was the source of a widely used pidgin throughout western Europe.

It's kind of ironic that we remember the name via the Roman scholars. Rome had fallen and the Holy Roman Empire was very not holy and sure as heck not Roman.

It gets worse than that, it's a term for a trading language that was mostly Italian and originated in Turkey.

Which Turkey are we on about here?

The Franks were mostly Germanic which is why English is considered a Germanic language and why Lingua Franca is a thing and why I can riff on the French (Franks) language being English as a silly joke.

English absorbs vocabulary from wherever and whomever it touches because it abhors a vacuum. I will give you a gold star if you can tell me how many languages I have referenced in that last sentence, and this one.

Byzantine Constantinople, I think, and the Fatimid Empire along the Mediterranean coast to the east. I could have said "Anatolia", but I didn't care to (to be Frank).