[Ir. finn, fair, bright, etc.; lug, light, brightness].
Name borne by numerous minor early Irish Christian figures, which is curious, as the name combines those of two of the best-known pagan figures, Fionn mac Cumhaill and Lug Lámfhota. Three of the most often mentioned are Finnlug, the father of St Brendan, Finnlug of Doon (Co. Limerick), and Finnlug, the father of St Finnian of Clonard. James Joyce cites the name as ‘Fynlogue’ in Finnegans Wake (1939), exploiting both the shadowy ambiguity and the possible associations with Fionn mac Cumhaill.