'Supposal' definitions:

Definition of 'supposal'

(from WordNet)
noun
A hypothesis that is taken for granted; "any society is built upon certain assumptions" [syn: assumption, supposition, supposal]
noun
The cognitive process of supposing [syn: supposition, supposal]

Definition of 'Supposal'

From: GCIDE
  • Supposal \Sup*pos"al\, n. The act of supposing; also, that which is supposed; supposition; opinion. --Shak. [1913 Webster]
  • Interest, with a Jew, never proceeds but upon supposal, at least, of a firm and sufficient bottom. --South. [1913 Webster]