Home › Words › M › missupposemissupposemissuppose means to suppose incorrectly.EtymologyFrom mis- + suppose.verbTo suppose incorrectly.e.g.“There was, indeed, another Boort, or Bors, afterwards king of Benoic; but the translator has evidently missupposed Ban-Boozt to be the name of one king, and Bos that of the other.” — 1885, Ancient English Metrical Romances, page 4:Definitions & examples from Wiktionary (CC BY-SA 3.0).