ὑπονοέω
Infl. fut. ήσω
I. "to think secretly, suspect", Hdt., Eur., etc.:—c. acc. pers. et inf. "to suspect that..", Hdt.; τῶν λεγόντων ὑπενοεῖτε "you feel suspicious" of the speakers, Thuc.
II. generally, "to suspect, conjecture, form guesses about", Ar.: absol., ὑπονοοῦντες "by conjecture", Plat.