Fionn mac Cumhaill ( ; Old and or mac Cumail or mac Umaill), often anglicized Finn McCool or MacCool, is a hero in Irish mythology, as well as in later Scottish and Manx folklore. He is leader of the Fianna bands of young roving hunter-warriors, as well as being a seer and poet. He is said to have a magic thumb that bestows him with great wisdom. He is often depicted hunting with his hounds Bran and Sceólang, and fighting with his spear and sword. The tales of Fionn and his fiann form the Fianna Cycle or Fenian Cycle (an Fhiannaíocht), much of it narrated by Fionn's son, the poet Oisín. Etymology In Old Irish, finn/find means "white, bright, lustrous; fair, light-hued (of complexion, hair, etc.); fair, handsome, bright, blessed; in moral sense, fair, just, true". It is cognate with Primitive Irish VENDO- (found in names from Ogam inscriptions), Welsh gwyn, Cornish gwen, Breton gwenn, Continental Celtic and Common Brittonic *- (a common element in personal and place names), and comes from the Proto-Celtic adjective masculine singular *windos. Irish legend Fionn's birth and early adventures are recounted in the narrative The Boyhood Deeds of Fionn and other sources. Finn was the posthumous son of Cumhall, leader of the Fianna, by Muirne. Finn and his father Cumhall mac Trénmhoir ("son of Trénmór") stem from Leinster, rooted in the tribe of Uí Thairsig ("the Descendants of Tairsiu") There is mention of the Uí Thairsig in the Lebor Gabála Érenn as one of the three tribes descended from the Fir Bolg. His mother was called Muirne Muincháem "of the Fair Neck" (or "of the Lovely Neck", or "Muiren smooth-neck"), the daughter of Tadg mac Nuadat (in Fotha Catha Chnucha) and granddaughter of Nuadat the druid serving Cathair Mór who was high-king at the time, though she is described as granddaughter of Núadu of the Tuatha Dé Danann according to another source (Acallam na Senórach). Cumhall served Conn Cétchathach "of the Hundred Battles" who was still a regional king at Cenandos (Kells, Co. Meath). Cumhall abducted Muirne after her father refused him her hand, so Tadg appealed to the high king Conn, who outlawed Cumhall. The Battle of Cnucha was fought between Conn and Cumhall, and Cumhall was killed by Goll mac Morna, who took over leadership of the Fianna. The feud The Fianna were a band of warriors also known as a military