[pre.sup.pose] vt [ME, fr. MF presupposer, fr. ML praesupponere (perf. indic. praesupposui), fr. L prae- + ML supponere to suppose--more at suppose] (15c) 1: to suppose beforehand
2: to require as an antecedent in logic or fact -- pre.sup.po.si.tion n -- pre.sup.po.si.tion.al adj