adv. & conj. [ Where + for. ] [ 1913 Webster ]
Wherefore by their fruits ye shall know them. Matt. vii. 20. [ 1913 Webster ]
But wherefore that I tell my tale. Chaucer. [ 1913 Webster ]
Wherefore didst thou doubt? Matt. xiv. 31. [ 1913 Webster ]
n. the reason why. [ Colloq. ] [ 1913 Webster ]