dícheallach Definitions (by source) Show all Aibidil Gaoidheilge & Caiticiosma: Seaán Ó Cearnaigh's Irish primer of religion, published in 1571 ‘earnest’ 19.18 Aibidil Gaoidheilge & Caiticiosma: Seaán Ó Cearnaigh's Irish primer of religion, published in 1571. Editor: Brian Ó Cuív. Poems on the O'Reillys intensive, difficult, 117. Poems on the O'Reillys. Editor: James Carney.