Low spirits

Origin

The word "spirit" has a long history, stemming from Latin 'spiritus' meaning "breath," "soul," or "courage." In the medieval and early modern periods, "spirits" were also believed to be subtle vapors or fluids in the body that influenced a person's mood and vitality. When these vital fluids were thought to be depleted or stagnant, one's disposition would naturally become "low." This concept, deeply rooted in early medical and philosophical understandings of the human condition, eventually shed its literal physiological meaning, but the vibrant metaphor of one's inner essence being either uplifted or diminished remains a powerful way to describe emotional states today.