misaˈffirm,v.rare. [mis-1 1.] trans. To affirm wrongly or falsely. a1614Donne βιαθανατος (1644) 27 They mis-affirme that this act alwaies proceeds from desperation.1649Milton Eikon.Pref., By onely remembring them the truth of what they themselves know to be heer missaffirmd.