ChristianAnswers.Net WebBible Encyclopedia
“Greyhound” is the King James Version translation of the Hebrew words zarzir mothnayim, meaning literally “one girded in loins,” used in Proverbs 30:31. Verses 29-31 list four things that “go well” and are “comely in going” (beautiful and lovely to look at as they walk with dignity/majesty). The others things listed are: a lion, a male goat, and a king at the head of his army.
Other versions and interpreters translate this ancient Hebrew term differently:
It is uncertain what specifically is referred to by the words zarzir mothnayim in Proverbs 30:31. The Literal Interpretation of the Holy Bible simply says, “one girded in loins”. Strong’s Hebrew and Greek Dictionary says this about these two words: “zarzir” (zar-zeer) means properly “tightly girt,” that is, probably a racer, or some fleet animal (as being slender in the waist) / “mothnayim” (mo'-then): “From an unused root meaning to be slender; properly the waist or small of the back; only in plural the loins.”
The fast and graceful greyhound was known in ancient times, at least 3,000 years before Christ. Its image appears in Egyptian tombs.