9 letters · 17 points in Scrabble
noun a tall slender dog of an ancient breed noted for swiftness and keen sight; used as a racing dog
originFrom 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.
Etymology from Wiktionary, CC BY-SA 3.0