To take a customary action to ward off some misfortune that is believed to be attracted by a presumptuous statement.
Hopefully; a self-directive to undertake the customary action to ward off bad luck.
To imagine or suspect; to conjecture; to posit with contestable premises.
Thought, imagination, or conjecture, which may be based upon feeble or scanty evidence; suspicion; guess.
Reflection; thought; posit.