Surmise

Webster's Dictionary of the English Language

·noun Reflection; thought.

II. Surmise ·vt To imagine without certain knowledge; to infer on slight grounds; to suppose, conjecture, or suspect; to Guess.

III. Surmise ·noun A thought, imagination, or conjecture, which is based upon feeble or scanty evidence; suspicion; guess; as, the surmisses of jealousy or of envy.