Cavall

Cavall (Middle Welsh: cauall RBH & WBR; modernized: Cafall;[1] pronounced [kaˈvaɬ]; Latin: Cabal, var.

Caball (ms.K))[2] was King Arthur's dog, used in the hunt for the great boar, Twrch Trwyth (Latin: Troynt, Troit).

The lore is preserved in the Wonders of Britain (De Mirabilibus Britanniae or Mirabilia in shorthand) appended to the Historia Brittonum.

And men come and remove the stone in their hands for the length of a day and a night; and on the next day it is found on top of its mound.Lady Charlotte Guest was aware of the local lore that placed the monument at a mountain situated in the "district of Builth", the name by which that area was still being remembered from what was the ancient Buellt cantref of medieval Wales.

In Culhwch and Olwen, Arthur's dog Cavall is specifically credited with the slaying of Yskithyrwin (or at least with cornering the beast to its doom).

[35] A number of scholars have commented upon the similarity of the dog's name to the Latin word caballus for "horse".