[re.li.gion] n [ME religioun, fr. L religion-, religio supernatural constraint, sanction, religious practice, perh. fr. religare to restrain, tie back--more at rely] (13c) 1 a: the state of a religious "a nun in her 20th year of ~" b (1): the service and worship of God or the supernatural (2): commitment or devotion to religious faith or observance
2: a personal set or institutionalized system of religious attitudes, beliefs, and practices 3 archaic: scrupulous conformity: conscientiousness
4: a cause, principle, or system of beliefs held to with ardor and faith -- re.li.gion.less adj