Craibthech (‘Religiosus’, Annals of Ulster, A. D. 626 U627.3 in CELT edition, G100001A) is a standing epithet for Fursa. The gen. sg. occurs in the Félire Oengusso, Jan. 16, where ‘Cráibdig i féil Fursai’ is (for sake of rhyme) put for ‘i féil Fursai Cráibdig’ ‘on the feast of Fursa the Pious.’ For a tale of his compassionate tenderness, see Lismore Lives, p. x, and the Book of Leinster, pp. 285–286. For a legend of a Fursu driving a fiery dragon into a lake, see LL. 169a47 = Dindsenchas, no. 47. Revue Celtique, 15, 441.