Nice anecdotes, but the last one is a misinterpretation that got me into a rabbit hole. "poe-tat" is juste "patate" and is widely used not the least because it's just faster to say than "pomme de terre" (following Zipf's law of abbreviation and the principle of least effort). It's more informal, but it's pedigree is excellent as it comes from Taíno via Spanish, was first recorded in 1582 and recorded by the French Academy in 1762… which was actually only the case for "pomme de terre" in 1835! It seems that "pomme de terre" referred to other tubers in the distant past, but that the famous agronomist Parmentier remarketed "patates" as "pommes de terre" in the 18th century to promote their acceptance.

I think you're better at getting the phonetics across than I am.