Sanguinities

Part of speech: noun

Definitions

1. A characteristic or quality of being optimistic and cheerful in outlook
2. a state of having a positive or hopeful attitude towards life
3. the trait of maintaining a positive demeanor even in challenging situations

Etymology: "Sanguinities" is the plural of "sanguinity," a noun for a hopeful, cheerful disposition. The noun comes from the Latin "sanguineus," meaning "blood-red" or "bloody," which itself derives from "sanguis," "blood." It rests on old medical theory, in which a surplus of blood was thought to produce a warm, buoyant temperament, so the blood-related root came to name an optimistic outlook.