From BiblePortal Wikipedia

Webster's Dictionary [1]

(1): ( a.) Before unused or unknown; new; as, a book full of original matter.

(2): ( n.) An original thinker or writer; an originator.

(3): ( n.) A person of marked eccentricity.

(4): ( a.) Pertaining to the origin or beginning; preceding all others; first in order; primitive; primary; pristine; as, the original state of man; the original laws of a country; the original inventor of a process.

(5): ( a.) Having the power to suggest new thoughts or combinations of thought; inventive; as, an original genius.

(6): ( n.) Origin; commencement; source.

(7): ( n.) That which precedes all others of its class; archetype; first copy; hence, an original work of art, manuscript, text, and the like, as distinguished from a copy, translation, etc.

(8): ( a.) Not copied, imitated, or translated; new; fresh; genuine; as, an original thought; an original process; the original text of Scripture.

(9): ( n.) The natural or wild species from which a domesticated or cultivated variety has been derived; as, the wolf is thought by some to be the original of the dog, the blackthorn the original of the plum.

King James Dictionary [2]

Orig'Inal, n.

1. Origin. See Origin, with which it accords in signification. 2. Fountain source cause that from which any thing primarily proceeds that which gives existence or beginning. The apostasy is believed to have been the origin of moral evil. The origin of many of our customs is lost in antiquity. Nations, like individuals, are ambitious to trace their descent from an honorable origin.

Orig'Inal, a. L. orginialis.

1. First in order preceding all others as the original state of man the original laws of a country original rights or powers the original question in debate. 2. Primitive pristine as the original perfection of Adam.

Original sin, as applied to Adam, was his first act of disobedience in eating the forbidden fruit as applied to his posterity, it is understood to mean either the sin of Adam imputed to his posterity, or that corruption of nature, or total depravity, which has been derived from him in consequence of his apostasy. On this subject divines are not agreed.

In strictness, original sin is an improper use of words, as sin,  Exodus 6termini, implies volition and the transgression of a known rule of duty by a moral agent. But this application of the words has been established by long use, and it serves to express ideas which many wise and good men entertain on this subject.

3. Having the power to originate new thoughts or combinations of thought as an original genius.