red-and-yellow

The term "red-and-yellow" is a modern English compound, a straightforward descriptive label formed by joining two basic color terms with a conjunction. Its logic is purely compositional, deriving its meaning directly from the sum of its parts. The individual color words have deep, ancient roots: "red" traces back to a Proto-Indo-European root associated with the color of blood and ruddy complexions, while "yellow" descends from a root meaning "to shine," originally encompassing bright colors like gold and green before specializing. The compound itself has no single etymological story but represents a later syntactic combination of these historically independent and primal color concepts to describe bicolored or variegated appearances.

This is a compound adjective formed by combining three simplex words: "red", "and", and "yellow". "Red" originates from Old English read, from Proto-Germanic raudaz, ultimately from Proto-Indo-European h₁rewdʰ- meaning "red, ruddy". "Yellow" originates from Old English geolu, geolwe, from Proto-Germanic gelwaz, from Proto-Indo-European ǵʰelh₃- meaning "to shine, green, gold, yellow". The conjunction "and" (Old English and, ond) serves as a linking element.