Merriam-Webster's Collegiate® Dictionary, 11th Edition
WORSHIP
I. noun
Etymology: Middle English worshipe worthiness, respect, reverence paid to a divine being, from Old English weorthscipe worthiness, respect, from weorth worthy, worth + -scipe -ship Date: before 12th century a person of importance, reverence offered a divine being or supernatural power, a form of religious practice with its creed and ritual, extravagant respect or admiration for or devotion to an object of esteem ,
II. verb (-shipped; also -shiped; -shipping; also -shiping)
Date: 13th century
transitive verb to honor or reverence as a divine being or supernatural power, to regard with great or extravagant respect, honor, or devotion , intransitive verb to perform or take part in worship or an act of worship, see: revere worshipper or worshiper noun