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1800, perhaps a back-formation (influenced by French adjective conscrit) from conscription.
1530s, from Latin conscriptus, past participle of conscribere "to draw up, list," literally "to write together" (see conscription).
1813, American English, from conscript (n.). A word from the militia drafts in the War of 1812. Popularized (or unpopularized) during U.S. Civil War, when both sides resorted to it in 1862. Related: Conscripted; conscripting.