Exposure

google

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early 17th century: from expose, on the pattern of words such as enclosure .

wiktionary

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expose +‎  -ure

etymonline

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exposure (n.)

c. 1600, "public exhibition," from expose (v.) + -ure. Sense of "situation with regard to sun or weather" is from 1660s. Photographic sense "act of exposing to light" is from 1839. Indecent exposure attested by 1825.