n. [ F. supposition, L. suppositio a placing under, a substitution, fr. supponere, suppositium, to put under, to substitute. The word has the meaning corresponding to suppose. See Sub-, and Position. ]
This is only an infallibility upon supposition that if a thing be true, it is imposible to be false. Tillotson. [ 1913 Webster ]
He means are in supposition. Shak. [ 1913 Webster ]
a. Resting on supposition; hypothetical; conjectural; supposed. South. [ 1913 Webster ]