Animus has long referred to the rational or animating components of a person's psyche (it derives from Latin animus, which can mean "spirit," "mind," "courage," or "anger"). Since a key animating component of personality can be temper, the word came to mean animosity, especially ill will that is driven by strong prejudice. The term is also used in the analytic psychology of C. G. Jung in reference to an inner masculine part of the female personality. The English animus is closely related to words such as animosity, magnanimous, and unanimous, but it is not as closely related to other similar-looking terms such as animal and animate. Those latter terms derive from the Latin anima, a distinct term that means "soul" or "breath" and that suggests someone's physical vitality or life force—the breath of life.