Английский Этимологический словарь - export (v.)

EXPOSE (V.) - 14c., "to leave without shelter or defense," from M.Fr. exposer "lay open, set forth," from L. exponere "set forth" (see expound), altered by confusion with poser "to place, lay down" (see pose). At first, exposition (1390) was used with a sense of "explanation, narration," the meaning "public display" is first recorded 1851 in reference to the Crystal Palace Exposition in London. Exposй was introduced 1803 as a Fr. word. It is the pp. of exposer.