Nice, Council of, [202]
Nigra, Constantine, [596]; on the Celtic invention of rhyme, [481]; on the monks' ode to the blackbird, [485]
Nile, the, Irish sail up it, [223]
Ninian, St., [194]
Ninnidh, St., of Loch Erne, [196]
Nindid "the scholar," [161]
Niul, son of Fenius Farsa, [45]
Noli pater, Columcille's, [181]
Nomad, a measure of time, [84]
Norman invasion, the, its effects, [453] ff; arrests Irish development, [463]; effect on the bards, [491]