postulate

Short definition from Wiktionary

Noun

1. 1
   Something assumed without proof as being self-evident or generally accepted, especially when used as a basis for an argument. Sometimes distinguished from axioms as being relevant to a particular science or context, rather than universally true, and following from other axioms rather than being an absolute assumption.
2. 2
   A fundamental element; a basic principle.
3. 3
   An axiom.
4. 4
   A requirement; a prerequisite.

Verb

1. 1
   To assume as a truthful or accurate premise or axiom, especially as a basis of an argument.
2. 2
   To appoint or request one's appointment to an ecclesiastical office.
3. 3
   To request, demand or claim for oneself.

Adjective

1. 1
   Postulated.