Why is the head groomsman at a wedding called the best man and why isn’t there a best woman?

The phrase best man is of Scottish origin and recalls the days when a bridegroom simply kidnapped the woman he wanted as his bride.

To help him in that task, the groom enlisted a cadre of friends.

The toughest and bravest of these groomsmen was the best man.

Had women kidnapped men, they might have needed best women.