How do you spell Bane

Available Definitions:
1)  n. - That which destroys life, esp. poison of a deadly quality.
2)  n. - Destruction; death.
3)  n. - Any cause of ruin, or lasting injury; harm; woe.
4)  n. - A disease in sheep, commonly termed the rot.
5)  v. t. - To be the bane of; to ruin.