Sup-pōs'i-tī'tioŭs, a.

(pōz'/i-tĭsh'us), a. [Lat. supposititius, from supponere, suppositum, to put in the place of another, to substitute; It. supposititio, Sp. supositicio. See SUPPOSE.] Put by trick in the place or character belonging to another; not genuine; spurious; counterfeit; as, a supposititious child; a supposititious writing.