The Ó Dálaigh were a learned Irish bardic family who first came to prominence early in the 12th century, when Cú Connacht Ó Dálaigh was described as "The first Ollamh of poetry in all Ireland".
The Latin motto translates as 'Faithful to God and King', an Irish language alternative meaning 'Swift and Strong' (referencing the greyhound crest and lion blazon), is often preferred.
"Harp of Cnoc I'Chosgair, you who bring sleep to eyes long sleepless; sweet subtle, plangent, glad, cooling grave. Excellent instrument with smooth gentle curve, trilling under red fingers, musician that has charmed us, red, lion-like of full melody. You who lure the bird from the flock, you who refresh the mind, brown spotted one of sweet words, ardent, wondrous, passionate." Gofraidh Fionn Ó Dálaigh.