[Ir. cáech, one-eyed].
Ferocious British (sometimes Cornish) pirate in early Irish literature; distinguished by his single eye, as broad as an oxhide and as black as a beetle, with three pupils in it. With the sons of Donn Désa, Fer Gair, Fer Lí, and Fer Rogain, as well as the seven sons of Medb named Maine, he sacks Da Derga's Hostel in Togail Bruidne Da Derga [The Destruction of Da Derga's Hostel]. His brother is Éccell.