suppositum

From the past participle of Latin supponere (“to suppose”).

suppositum (uncountable)

1. (logic) Something supposed to be true; an assumption
   • 1977, David Joel, Weissman - Eternal Possibilities: A Neutral Ground for Meaning and Existence:

     The answer may be that these relation-ships are generated in every possible world, given any suppositum of a certain least complexity.

suppositum

1. inflection of suppositus:
   1. nominative/accusative/vocative neuter singular
   2. accusative masculine singular

• suppositum in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)