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Onchú

Mythical Irish animal

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An onchú is an animal in Irish mythology. It is listed in the 12th-century Cogad Gáedel re Gallaib (The War of the Irish with the Foreigners) amongst the venomous beasts.

An onchú is mentioned in Cathréim Cellaig (Cellach's Victory). It terrorised the land between Loch Con and Loch Cuilin. The hero Muiredach (brother of the murdered Cellach of Killala) chased it into a lake and killed it after it had killed several of his party.

A suggested, but uncertain, etymology of its name is that on is water and cú is dog, thus water-dog.

It has been used as a heraldic device, including on the battle flag of the Irish in 1595. Williams (1989) suggests that the enfield on the crest of the O'Kellys is derived from the onchú.

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This article is adapted from the Wikipedia article Onchú, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.

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