Word Origin & History
jest
c.1300, "narrative of exploits" (originally in verse), from O.Fr. geste "action, exploit," from L. gesta "deeds," neut. pl. of gestus, pp. of gerere "to carry, behave, act, perform." Sense descended through "idle tale" (c.1470) to "mocking speech, raillery" (c.1548) to "joke" (1551). The verb in the sense of "to speak in a trifling manner" is from 1530. Jester developed from M.E. gestour "a minstrel, professional reciter of romances" (c.1380), from gesten "recite a tale," which was a jester's original function; sense of "buffoon in a prince's court" is from 1510.