dionn Definitions (by source) Show all Aithdioghluim Dána: A Miscellany of Irish Bardic Poetry, Historical and Religious, including the Historical Poems of the Duanaire in the Yellow Book of Lecan. Vol II, Translations, Notes, Vocabulary hill, fort, -lios 45 3, -mhagh 76 17. Aithdioghluim Dána: A Miscellany of Irish Bardic Poetry, Historical and Religious, including the Historical Poems of the Duanaire in the Yellow Book of Lecan. Vol II, Translations, Notes, Vocabulary. Editor: Lambert McKenna S.J. Poems on the O'Reillys a mound. dionn fásuigh, a deserted mound, 2654; dionn seanaidh, 2723. Poems on the O'Reillys. Editor: James Carney.