daingnighim
Definitions (by source)
d. dán, síoth 19 1; d. d'airrdheanaibh I establish, prove, by signs 65 4.
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.
I confirm, strengthen, remain obstinate, 2537; ainm br. daingnioghadh 1208, 1498, 2533, 3047.
An Teagasg Críosdaidhe. Editor: Fearghal Mac Raghnaill, O.F.M.