- suppose
- early 14c., "to assume as the basis of argument," from O.Fr. supposer "to assume," probably a replacement of *suppondre (influenced by O.Fr. poser "put, place"), from L. supponere "put or place under," from sub "under" + ponere "put, place" (see position). Meaning "to admit as possible, to believe to be true" is from 1520s.