Twrch Trwyth[] ; Troit ; or Terit ) is an enchanted wild boar in the Matter of Britain that King Arthur or his men pursued with the aid of Arthur's dog Cavall. The names of the hound and boar are glimpsed in a piece of geographical composed in Latin in the ninth century, the Historia Brittonum. However, a richly elaborate account of the great hunt appears in the Welsh prose romance Culhwch and Olwen, probably written around 1100. A passing reference to Twrch Trwyth also occurs in the elegy Gwarchan Cynfelyn preserved in the Book of Aneirin. The name in Welsh can be construed to mean "the boar Trwyth", and may have its analogue in the boarTriath of Irish mythology.
''Historia Brittonum''
The earliest reference to the boar Trwyth occurs in the tract De Mirabilibus Britanniae, variously titled in English as "". The Mirabilia is believed to be near-contemporaneous to Nennius' ninth century Historia Brittonum and is found appended to it in many extant manuscripts. It gives a list of marvels around Britain, one of them being the footprint left in rock by Arthur's dog Cavall, made while chasing the great boar :
Twrch is named as the son of Prince Tared, cursed into the form of a wild creature; he has poisonous bristles, and carries a pair of scissors, a comb and a razor on his head between his ears. In French romances such as by Chrétien de Troyes, Ares is the father of a knight called Tor. Some scholars consider that Tor son of Ares is the Twrch son of Tared of Culhwch and Olwen and that the authentic name is probably Ares. Culhwch is given the task by Ysbaddaden, the giant whose daughter Olwen Culhwch seeks, of obtaining the comb and scissors from Twrch's head. Later in the story it transpires there is also a razor secreted there. These implements are then to be used to cut and treat Ysbaddaden's hair. Further, Ysbaddaden states that the only hound who can hunt Twrch is Drudwyn, the whelp of Greid, and then goes on to list the requirements of the leash to hold Drudwyn, the only man strong enough to hold the leash. Ultimately Ysbaddaden calls on Culhwch to seek out Arthur, Culhwch's cousin, to help him hunt Twrch. Prior to the hunt, Menw son of Teirgwaedd is sent to verify that the comb and scissors are between Twrch's ears. He takes the form of a bird and flies to Twrch's lair, encountering the boar with seven piglets. Menw then tries to swoop down and snatch one of the implements from Twrch's scalp, but only manages to take one silver bristle; Twrch is agitated and shakes himself, scattering venom onto Menw, wounding him. The hunt for Twrch takes up the greater portion of the latter half of Culhwch and Olwen, and it is described in great detail the geographical route of the pursuit, and those who take active part in it. Although it is Culhwch who is given the task, it is Arthur and his men who take the most prominent role in the chase, Culhwch having successfully enlisted his aid. After causing the death of several of Arthur's troop, the boar surrenders the razor, scissors, and later the comb by force, and he is driven into the sea off Cornwall and drowned. Yet another boar, Ysgithyrwyn or "White-Tusk, Chief of Boars", had to be captured for its tusk to complete the grooming of Ysbadadden.
Etymology and Irish cognate
As previously noted, the Welsh word twrch means "wild boar, hog, mole", so Twrch Trwyth means "the boar Trwyth". Its Irish cognate may be Triath, King of the Swine or the Torc Triath mentioned in Lebor Gabála Érenn, also recorded as Old IrishOrc tréith "Triath's boar" in Sanas Cormaic. Rachel Bromwich regards the form Trwyth as a late corruption. In the early text Historia Brittonum, the boar is called Troynt or Troit, a Latinisation likely from the Welsh Trwyd. Further evidence that Trwyd was the correct form appears in a reference in a later poem.
