Definify.com

Webster 1913 Edition

Noun.

The act of supposing; also, that which is supposed; supposition; opinion.

Shak.

Interest, with a Jew, never proceeds but upon

supposal

, at least, of a firm and sufficient bottom.

South.

Noun.

[from suppose.] Position without proof; the imagining of something to exist; supposition.

Interest, with Jew, never proceeds but upon supposal at least, of a firm and sufficient bottom.

supposal ‎(plural supposals)

The act of supposing.
That which is supposed; supposition; opinion.

(Can we find and add a quotation of Shakespeare to this entry?)

Interest, with a Jew, never proceeds but upon supposal, at least, of a firm and sufficient bottom. — South.