From Old English grīġhund, from a cognate or borrowing of Old Norse grøy (“bitch”) (whence Icelandic grey, thus not related to the colour grey) plus hund (“hound”). Altered by folk etymology to appear to be grey + hound.
greyhound (plural greyhounds)
- A lean breed of dog used in hunting and racing.
- 1834, L[etitia] E[lizabeth] L[andon], chapter XII, in Francesca Carrara. […], volume II, London: Richard Bentley, […], (successor to Henry Colburn), →OCLC, page 127:
- Her young heart was full of love; and a world of kindly feelings were wasted on her delicate greyhound, her bright winged birds, and her favourite flowers.
- A highball cocktail of vodka and grapefruit juice.
- (dated) A swift steamer, especially an ocean steamer.
- (highball cocktail): salty dog
- (of fish) To leap rapidly across the surface of the water.