Correct spelling for the English word "Sepawn" is [sˈɛpɔːn], [sˈɛpɔːn], [s_ˈɛ_p_ɔː_n] (IPA phonetic alphabet).
Porridge made from maize-meal, used as food in N. Amer.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.