to think or infer without certain or strong evidence; conjecture; guess.
verb (used without object), surmised, surmising.
to conjecture or guess.
a matter of conjecture.
an idea or thought of something as being possible or likely.
a conjecture or opinion.
Origin: 1350–1400;Middle Englishsurmisen < Anglo-Frenchsurmis(e), Middle French (past participle of surmettre to accuse < Latinsupermittere to throw upon), equivalent to sur-sur-1 + mis (masculine), mise (feminine) < Latinmissus, missa, equivalent to mit(tere) to send + -tus, -ta past participle suffix
c.1400, "to charge, allege," from O.Fr. surmis, pp. of surmettre "to accuse," from sur- "upon" + mettre "put," from L. mittere "to send" (see mission). Meaning "to infer conjecturally" is recorded from 1700. The noun meaning "inference, guess" is first found in Eng. 1590;
earlier it was a legal term meaning "formal allegation" (1451).