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c.1400, from escape (v.); earlier eschap (c.1300). Mental/emotional sense is from 1853. Escape clause in the legal sense first recorded 1945.
escape es·cape (ĭ-skāp')
A gradual effusion from an enclosure; a leakage.
A cardiological situation in which one pacemaker defaults or an atrioventricular conduction fails, and another pacemaker sets the heart's pace for one or more beats.