ὑπόνοια
Alt. ὑπόνοια, ἡ,
Etym. ὑπονοέω
"a hidden thought": hence,
I. "a suspicion, conjecture, guess, supposition", Ar., etc.; ὑπόνοιαι τῶν μελλόντων "notions formed of" future events, Thuc.
II. "the real meaning" of a thing, "the true intent, deeper sense", Xen., Plat., etc.