adv. & conj. [ Where + for. ] [ 1913 Webster ]

1. For which reason; so; -- used relatively. [ 1913 Webster ]

Wherefore by their fruits ye shall know them. Matt. vii. 20. [ 1913 Webster ]

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