[as.sump.tion] n [ME, fr. LL assumption-, assumptio taking up, fr. L assumere] (13c) 1 a: the taking up of a person into heaven b cap: August 15 observed in commemoration of the Assumption of the Virgin Mary
2: a taking to or upon oneself "the ~ of a new position"
3: the act of laying claim to or taking possession of something "the ~ of power"
4: arrogance, pretension
5. a: an assuming that something is true b: a fact or statement (as a proposition, axiom, postulate, or notion) taken for granted
6: the taking over of another's debts