WHEREFORE

wherefore. Wherefore, ad. for which or what reason, so that

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Where″fore (?), adv.& conj. [[Where + for.]] 1. 1. For which reason; so; — used relatively.
Wherefore by their fruits ye shall know them. Matt. vii. 20. 2. 2. For what reason; why; — used interrogatively.
But wherefore that I tell my tale. Chaucer. Wherefore didst thou doubt? Matt. xiv. 31.