a. rare. [see CO-.] Conjointly original: equally original each with the other.
1836–7. Sir W. Hamilton, Metaph. (1877), I. xvi. 297. Co-ordinate and co-original elements.
Hence Co-originality.
1830. Sir W. Hamilton, Discuss. (1852), 54. The co-originality and reciprocal independence of the subject and object.
