Wherefore

Where"fore (?), adv. & conj. [Where + for.]

1. For which reason; so; -- used relatively.

Wherefore by their fruits ye shall know them.
Matt. vii. 20.

2. For what reason; why; -- used interrogatively.

But wherefore that I tell my tale.
Chaucer.

Wherefore didst thou doubt?
Matt. xiv. 31.

Where"fore, n. the reason why. [Colloq.]