Webster's English Dictionary

Enter the word to look up:

presuppose

pre.sup.pose \.pre--s*-'po-z\ \(.)pre--.s*p-*-'zish-*n\ vt [ME presupposen, 
   fr. MF presupposer, fr. ML praesupponere (pe]rf. indic. praesupposui), fr. 
   L prae- + ML supponere to suppose - more at SUPPOSE 1: to suppose 
   beforehand  2: to require as an antecedent in logic or fact  - 
   pre.sup.po.si.tion n