presuppose

 
Pronunciation: /priːsəˈpəʊz/

verb

[with object]
  • require as a precondition of possibility or coherence: their original prediction presupposed a universe only three billion years old
  • [with clause] tacitly assume at the beginning of a line of argument or course of action that something is the case: your argument presupposes that it does not matter who is in power

Origin:

late Middle English: from Old French presupposer, suggested by medieval Latin praesupponere, from prae 'before' + supponere 'place under' (see suppose)