Edited from MS NLI G 50 (25 qq.) with reconstructed text, translation and notes. Ascribed in MS heading to Dallán [Forgaill] but ascribed to Becan mac Luighdech in a gloss. Beg. Fo réir Choluimb céin ad-fías. Includes discussion of metre (MS laoidh imrinn), which is described as ‘transitional’, as it displays both alliteration and regular end-rime.