reverence (n.) Look up reverence at Dictionary.com
late 13c., from Old French reverence, from Latin reverentia "awe, respect," from revereri "to revere," from re-, intensive prefix, + vereri "stand in awe of, fear," from PIE *wer- "to be or become aware of" (cf. Old English wær "aware, cautious;" see wary). The verb is first attested c.1300.