W.W. Phelps (Joseph's ghostwriter) quotes Facsimile 2 explanations, Grammar and Alphabet language.
Joseph Smith, Letter to James Arlington Bennet, 13 November 1843, [2b], The Joseph Smith Papers website, accessed July 27, 2021
Was Were I an Egyptian I would exclaim= Floeese Floeese: <Jah oh=eh> Enish-go=on=dosh, Jah=oh=eh <Flo-ees-Floisis>