It's all lyric poetry (as specified) and all English language, both American and British. Of course, there are influences non-English poetic traditions here and there, but quantifying those is difficult and I'm not sure they'd correlate with the data meaningfully. No non-English words were counted. That'd be another interesting mini research project!
As for French, French is low because Latin-derived French goes in the Latin bucket. Only where there's no clear Latin derivation is it listed as French/Norman in origin. If there comes to be more interest, I'd be happy to share more specifics on the methodology. More a proof of concept!
As for French, French is low because Latin-derived French goes in the Latin bucket. Only where there's no clear Latin derivation is it listed as French/Norman in origin. If there comes to be more interest, I'd be happy to share more specifics on the methodology. More a proof of concept!