what's the origin of the term widow's peak?

a widow's peak is a descending V shaped point in the middle of the hairline,above the forehead.the trait is inherited genetically.the term comes from english folklore. where it was belived that this formation was asign of a women who would outlive her husband.making people think a woman was being given a mourning hood for her husband's imminent death.it 's also believed to be a sign of sexual prowess in folklore. men with male pattern baldness develop what appears to be large widow'a peak