The English word "spirit" comes from the Latin "spiritus" (breath). The term is commonly used to refer to a supernatural being which is transcendent and therefore metaphysical in nature. For many people, however, spirit, like soul, is a natural part of a being, and is identified with mind, or consciousness, or the brain.
The English word "spirit" comes from the Latin spiritus, meaning "breath" (compare spiritus asper), but also "soul, courage, vigor", ultimately from a PIE root *(s)peis- (to blow). In the Vulgate, the Latin word translates Greek (πνευμα) pneuma, Hebrew (רוח) ruah, as opposed to anima, translating psykhē. The word was loaned into Middle English via Old French The distinction between soul and spirit became current in Judeo-Christian terminology (e.g. Greek. psykhe vs. pneuma, Latin anima vs. spiritus, Hebrew ruach vs. neshama or nephesh; in Hebrew neshama from the root NSHM or breath.)