[37. Dubthair.]—Dubthair can[as] rohainmniged?
Ni ansa .1. id est Dubthir nGuairi maic in Daill insin, iarsindi
dorigni fingail for a brathair oc Daiminis, for Dairine nDubchestach
,ac in Daill .1. a marbad[1] ar tnuth (symbol characters) tha[n]gnacht, co ro leith
fidh (
symbol characters) mothar dara ferann, conad desin asberar Dubthair.
Romarb Guairi Dare ndond
cen naire, ni rim rocholl,
mac a athar, adbal bét,
issa marbad tria drochét.[2]
The Black Land (Dub-thír) of Guaire mac in Daill ("Son of the Blind") is that. Because Guaire committed parricide at Daiminis, on his brother, on Dairíne Dubchestach, son of the Blind, slaying him out of envy and treachery. So a wood and a dark thicket spread over Guaire's land. And thence Dubthair is so called.
Guaire killed brown Daire
Without shame, he counted it not a great destruction:
His (own) father's son, an enormous offence.
Killing him through evil envy.
Also in LL. 165 b 8, 213 b 27; BB. 392 a 34; H. 51 b; Lec. 499; and R. 115 a 1.
I cannot identify this Dubthir and this Daim-inis, "ox-island". Prof. Atkinson says, Book of Leinster, contents, p. 56, col 1), that the former place is in Connaught; but from the story of Tochmarc Bec-fola, p. 176, it seems rather to be the modern Duffry, in Wexford. If so, Daim-inis can hardly be the Devenish of Lough Erne.
[38. Duiblinn.]—Duiblinn, canas rohainmni[g]ead?
Ni ansa .1. Dub ingen Roduib maic Glais Gamna roboi i fail
Endai maic Noiss hi Sidh Forcarthan. Rocarastar sen Aide
ingen Ochinm maic Cnucha. Ron-fitirse a mbé n-aill boi inna
farrid. Doluid Aide etir fairge (symbol characters) in sruth [] co rambruinded
acht fo thir co ndechsat tar Cnucha
Rofairigestar Margen[e] gilla Ochindi sen.[3] Doleicc sede uball
cliss[4] boi ina laim, co torchair nert in builli fuirri (symbol characters) doroich[5] in
tuili tairrsi. Unde Duiblind (
symbol characters) Ath Cliath Margene, fódeig is
annsin docer a urchar hisin n-ath.
Dub ingen Roduib ri[nd]glain
maic Glais Gamna glanhidhnaig,
romertain Mairgen mer mind,
ba gilla ardmin Ochinn.
Dub, daughter of Rodub, son of Glas Gamna, was near Endae, son of Noess, in Síd Forcarthan. He loved Aíde, daughter of Ochinne, son of Conucha. Dub knew that there was another woman along with him. Aíde went between the sea and the stream . . . so that . . . . . . . . . . . . . . . . . over Cnucha.