— suppositional , adj. — suppositionally , adv.
/sup'euh zish"euhn/ , n.
1. the act of supposing.
2. something that is supposed; assumption; hypothesis.
[ 1400-50; late ME supposition- (s. of suppositio ) substitution (E meaning by assoc. with SUPPOSE), equiv. to supposit ( us ) (ptp. of supponere to substitute) + -ion- -ION. See SUP-, POSITION ]