suppose I have a sincere religious belief that if I stop at a stop sign, God kills a kitten.
And far too much is made of that one guy's personality traits, even I suppose sometimes by me.
suppose that I want to know if I am about to be caught as an adulterer, which is question 100.
early 14c., "to assume as the basis of argument," from Old French supposer "to assume," probably a replacement of *suppondre (influenced by Old French poser "put, place"), from Latin supponere "put or place under," from sub "under" + ponere "put, place" (see position). Meaning "to admit as possible, to believe to be true" is from 1520s.