Obs. rare. [f. SUPPOSE v. + -URE: cf. composure.] A supposition, hypothesis.
1613. Chapman, Rev. Bussy D’Ambois, Plays, 1873, II. 143. There hung a taile Of circumstance so blacke on that supposure That [etc.].
1663. Butler, Hud., I. iii. 1322. Thy other Arguments are all Supposures, Hypothetical.
