Do you know ghouls from goblins and ghosts?
late 13c., from Old French reverence "respect, awe," from Latin reverentia "awe, respect," from revereri "to stand in awe of, respect, honor, fear, be afraid of; revere," from re-, intensive prefix (see re-), + vereri "stand in awe of, fear," from PIE *wer- "to be or become aware of, perceive, watch out for" (cf. Old English wær "aware, cautious;" see wary).
late 14c., "treat with respect, honor; venerate, pay pious homage to; esteem, value; bow to (someone); do honor to," from reverence (n.). Related: Reverenced; reverencing.