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mid-15c., from Latin exhibitus, past participle of exhibere "to hold out, display, show, present, deliver" (see exhibition). Related: Exhibited; exhibiting.
1620s, "document or object produced as evidence in court," from Latin exhibitum, neuter past participle of exhibere (see exhibition). Meaning "object displayed in a fair, museum, etc." is from 1862. Transferred use of exhibit A "important piece of evidence" is by 1906.