Tethra

In Irish mythology, Tethra of the Fomorians ruled Mag Mell after dying in the Second Battle of Mag Tuiredh. After the battle, his sword, Orna, was taken by Ogma and it then recounted everything it had done.

Tethra may be derived from the Proto-Indo-European *tet(e)ro- meaning 'quacking sound'. It also means scald-crow Badb or Roynston's crow in Old Irish. [4]

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