religion
re.li.gion \ri-'lij-*n\ n [ME religioun, fr. L religion-, religio reverence, religion,]prob. fr. religare to tie back - more at RELY 1a1: the service and worship of God or the supernatural 1a2: commitment or devotion to religious faith or observance 1b: the state of a religious 2: a personal set or institutionalized system of religious attitudes, belie fs, and practices archaic 3: scrupulous conformity : CONSCIENTIOUSNESS 4: a cause, principle, or system of beliefs held to with ardor and faith
Webster's English Dictionary