The definition of an original is the earliest form of something, or something different and unique.
(noun)See original in Webster's New World College Dictionary
adjective
Origin: OFr < L originalis
noun
Origin: Fr < the adj.
See original in American Heritage Dictionary 4
adjective
Origin:
Origin: Middle English
Origin: , from Old French
Origin: , from Latin orīginālis
Origin: , from orīgō, orīgin-, source; see origin
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