Definition of supposal in English:

supposal

noun

  • 1The action of supposing something, supposition. Formerly often in "on (also †upon) supposal of (also †that)". Also parenthetically, "†by (also upon) supposal": as may be supposed, supposedly (obsolete).

  • 2Something supposed; a supposition, a hypothesis, a conjecture; an assumption.

  • 3A notion, an opinion. Now rare.

Origin

Late Middle English; earliest use found in John Wyclif (d. 1384), theologian, philosopher, and religious reformer. From Anglo-Norman supposaille, supposail, supposaile mere supposition, (in law) a supposition, something presupposed to be true from supposer + -aille, -ail.

Pronunciation

supposal

/səˈpəʊzl/