Religion

Latin religiōn-, religiō 

supernatural feeling of constraint, usually having the force of a prohibition or impediment, that which is prohibited, taboo, positive obligation, rule, impediment to action proceeding from religious awe or conscience, scruple, manifestation of divine sanction, religious fear, awe, religious feeling, superstition, quality evoking awe or reverence, sanctity, religious observance, religious practice, ritual, particular system of religious observance, cult, conscientiousness, in post-classical Latin also monastic community (8th cent.), religious order, rule observed by a religious order (12th cent.)

OED 3rd/online, 2010