The use of a pair of independent words joined by and, where one of the words achieves the effect of a modifier, to express a single expanded idea, as nice and warm (nicely warm) or Tennyson's: waving to him white hands and courtesy (courteous white hands) Sidelight: Shakespeare's works contain many examples of hendiadys, such as "sound and fury" (furious sound) in Macbeth, and "heat and flame" (hot flame) in Hamlet.(Compare Prolepsis, Syllepsis. Zeugma)

A hendiadys (Grk: “one through two”) is a figure of speech that uses the combined idea of two words to express one meaning. Example:“The Lord rained upon Sodom and Gomorrah brimstone and fire” (meaning burning brimstone; Genesis 19:24)

Hendiadys (Greek for one through two) is a figure of speech used for emphasis — "The substitution of a conjunction for a subordination".