See wherefore in Webster's New World Roget's A-Z Thesaurus II
noun
That which provides a reason or justification:
call, cause, ground (often used in plural), justification, necessity, occasion, reason, why. Idiom: why and wherefore. See startA fact or circumstance that gives logical support to an assertion, claim, or proposal:
argument, ground (often used in plural), proof, reason, why. Idiom: why and wherefore. See reason
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