v. sur·mised, sur·mis·ing, sur·mis·es
1. To make a judgment about (something) without sufficient evidence; guess: "In another pocket he came across what he surmised in the dark were pennies, erroneously, however, as it turned out" (James Joyce).
2. To say (something) as a guess or conjecture.
To make a guess or conjecture.
An idea or opinion based on insufficiently conclusive evidence; a conjecture.
[Middle English surmisen, to accuse, from Old French surmise, feminine past participle of surmettre : sur-, sur- + mettre, to put (from Latin mittere).]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.