willer

As nouns the difference between willpower and willer

is that willpower is the unwavering strength of will to carry out one’s wishes while willer is one who wills, who causes by an act of will or willpower.

As nouns the difference between will and willer

is that will is desire, longing. (Now generally merged with later senses. while willer is one who wills, who causes by an act of will or willpower.

As a verb will

is to wish, desire.

As a proper noun Will

is a diminutive=William given name. Also used as a formal given name.