red-blooded

The term "red-blooded" is a vivid metaphorical compound from English. The concept of "blood" as the seat of life, vigor, and character is ancient, traceable to Proto-Germanic blōþam. The adjective "red" intensifies this, evoking the healthy, oxygen-rich color of arterial blood, a direct symbol of robust life and vitality. Emerging in the late 19th century, the term originally described animals of pure, vigorous stock. Its logic was then extended figuratively to humans, where "red-blooded" came to signify a person, typically male, possessing the quintessential, hearty, and passionate qualities associated with vigorous health and traditional masculinity. The metaphor powerfully links a literal, physiological sign of health to an abstract set of character traits.

Structure: red (color) + blood (life force) + ed (adjective suffix) - red: From Old English rēad, of Germanic origin, related to Dutch rood and German rot. In this compound, it functions as an intensifier, suggesting a vivid, robust quality. - blood: From Old English blōd, of Germanic origin. In this compound, it functions as a noun representing vitality, lineage, or essential character. - ed: A suffix forming adjectives from nouns, indicating "having the qualities of" or "characterized by."