pə|tid.ēˌōˌpriŋˈkipēˌē, pə|tishēˌōˌprinˈsipēˌī, pā|tētsēˌōˌprinˈchēpēˌē noun
Etymology: Medieval Latin, literally, postulation of the beginning
: a logical fallacy in which a premise is assumed to be true without warrant or in which what is to be proved is implicitly taken for granted