Clock

klok, n. a machine for measuring time, marking the time by the position of its 'hands' upon the dial-plate, or by the striking of a hammer on a bell: ( Shak. ) the striking of the hour.— n. Clock′work , the works or machinery of a clock: machinery steady and regular like that of a clock.— adj. automatic.— Go like clockwork , to go along smoothly and without a hitch.— Know what o'clock it is , to be wide awake, to know how things are. [M. E. clokke , prob. through O. Fr. from Low L. cloca , clocca , a bell; mod. Fr. cloche , Dut. klok ; Ger. glocke , a bell.]