Expose
late Middle English: from Old French exposer, from Latin exponere (see expound), but influenced by Latin expositus ‘put or set out’ and Old French poser ‘to place’.
wiktionary
Borrowed from Middle French exposer(“to lay open, set forth”), from Latin expōnō(“set forth”), with contamination from poser(“to lay, place”). Doublet of expound, via Old French espondre(“to set forth, explain”), from the same Latin term.
etymonline
expose (v.)
early 15c., "to leave without shelter or defense," from Old French esposer, exposer "lay open, set forth, speak one's mind, explain" (13c.), from Latin exponere "set forth, lay open, exhibit, reveal, publish," from ex "from, forth" (see ex-) + ponere "to put, place" (see position (n.)). Altered in French by confusion with poser "to place, lay down" (see pose (v.1)). Meaning "to exhibit openly" is from 1620s; that of "to unmask" is from 1690s. Photographic sense is from 1839. Related: Exposed; exposes; exposing.
expose (n.)
also exposé, "display of discreditable information," 1803, initially as a French word; noun use of past participle of French exposer "lay open" (see expose (v.)). Earliest use was in reference to Napoleon.
