premise n
1 (Also)
premiss (Logic) a statement that is assumed to be true for the purpose of an argument from which a conclusion is drawn vb
2 to state or assume (a proposition) as a premise in an argument, theory, etc.
(C14: from Old French prémisse, from Medieval Latin praemissa sent on before, from Latin praemittere to dispatch in advance, from prae before + mittere to send)
major premise n
(Logic) the premise of a syllogism containing the predicate of its conclusion
minor premise n
(Logic) the premise of a syllogism containing the subject of its conclusion