But the relationship and functions of these various personages are obscure, nor is it certain that Nodons was equated with Neptune or that Nuada was a water-god. His name may be cognate with words meaning "growth," "possession," "harvest," and this supports the view taken here of his functions.250 The Welsh Nudd Hael, or "the Generous," who possessed a herd of 21,000 milch kine, may be a memory of this god, and it is possible that, as a god of growth, Nuada had human incarnations called by his name.251
Ler, whose name means "sea," and who was a god of the sea, is father of Manannan as well as of the personages of the beautiful story called The Children of Lir, from which we learn practically all that is known of him. He resented not being made ruler of the Tuatha Déa, but was later reconciled when the daughter of Bodb Dearg was given to him as his wife. On her death, he married her sister, who transformed her step-children into swans.252 Ler is the equivalent of the Brythonic Llyr, later immortalised by Shakespeare as King Lear.
The greatness of Manannan mac Lir, "son of the sea," is proved by the fact that he appears in many of the heroic tales, and is still remembered in tradition and folk-tale. He is a sea-god who has become more prominent than the older god of the sea, and though not a supreme god, he must have had a far-spreading cult. With Bodb Dearg he was elected king of the Tuatha Dé Danann. He made the gods invisible and immortal, gave them magical food, and assisted Oengus in driving out Elemar from his síd. Later tradition spoke of four Manannans, probably local forms of the god, as is suggested by the fact that the true name of one of them is said to be Orbsen, son of Allot. Another, the son of Ler, is described as a renowned trader who dwelt in the Isle of Man, the best of pilots, weather-wise, and able to transform himself as he pleased. The Cóir Anmann adds that the Britons and the men of Erin deemed him god of the sea.253 That position is plainly seen in many tales, e.g. in the magnificent passage of The Voyage of Bran, where he suddenly sweeps into sight, riding in a chariot across the waves from the Land of Promise; or in the tale of Cúchulainn's Sickness, where his wife Fand sees him, "the horseman of the crested sea," coming across the waves. In the Agallamh na Senorach he appears as a cavalier breasting the waves. "For the space of nine waves he would be submerged in the sea, but would rise on the crest of the tenth without wetting chest or breast."254 In one archaic tale he is identified with a great sea wave which swept away Tuag, while the waves are sometimes called "the son of Lir's horses"—a name still current in Ireland, or, again, "the locks of Manannan's wife."255 His position as god of the sea may have given rise to the belief that he was ruler of the oversea Elysium, and, later, of the other-world as a magical domain coterminous with this earth. He is still remembered in the Isle of Man, which may owe its name to him, and which, like many another island, was regarded by the Goidels as the island Elysium under its name of Isle of Falga. He is also the Manawyddan of Welsh story.
Manannan appears in the Cúchulainn and Fionn cycles, usually as a ruler of the Other-world. His wife Fand was Cúchulainn's mistress, Diarmaid was his pupil in fairyland, and Cormac was his guest there. Even in Christian times surviving pagan beliefs caused legend to be busy with his name. King Fiachna was fighting the Scots and in great danger, when a stranger appeared to his wife and announced that he would save her husband's life if she would consent to abandon herself to him. She reluctantly agreed, and the child of the amour was the seventh-century King Mongan, of whom the annalist says, "every one knows that his real father was Manannan."256 Mongan was also believed to be a rebirth of Fionn. Manannan is still remembered in folk-tradition, and in the Isle of Man, where his grave is to be seen, some of his ritual survived until lately, bundles of rushes being placed for him on midsummer eve on two hills.257 Barintus, who steers Arthur to the fortunate isles, and S. Barri, who crossed the sea on horseback, may have been legendary forms of a local sea-god akin to Manannan, or of Manannan himself.258 His steed was Enbarr, "water foam or hair," and Manannan was "the horseman of the manéd sea." "Barintus," perhaps connected with barr find, "white-topped," would thus be a surname of the god who rode on Enbarr, the foaming wave, or who was himself the wave, while his mythic sea-riding was transferred to the legend of S. Barri, if such a person ever existed.
Various magical possessions were ascribed to Manannan—his armour and sword, the one making the wearer invulnerable, the other terrifying all who beheld it; his horse and canoe; his swine, which came to life again when killed; his magic cloak; his cup which broke when a lie was spoken; his tablecloth, which, when waved, produced food. Many of these are found everywhere in Märchen, and there is nothing peculiarly Celtic in them. We need not, therefore, with the mythologists, see in his armour the vapoury clouds or in his sword lightning or the sun's rays. But their magical nature as well as the fact that so much wizardry is attributed to Manannan, points to a copious mythology clustering round the god, now for ever lost.
The parentage of Lug is differently stated, but that account which makes him son of Cian and of Ethne, daughter of Balor, is best attested.259 Folk-tradition still recalls the relation of Lug and Balor. Balor, a robber living in Tory Island, had a daughter whose son was to kill her father. He therefore shut her up in an inaccessible place, but in revenge for Balor's stealing MacIneely's cow, the latter gained access to her, with the result that Ethne bore three sons, whom Balor cast into the sea. One of them, Lug, was recovered by MacIneely and fostered by his brother Gavida. Balor now slew MacIneely, but was himself slain by Lug, who pierced his single eye with a red-hot iron.260 In another version, Kian takes MacIneely's place and is aided by Manannan, in accordance with older legends.261 But Lug's birth-story has been influenced in these tales by the Märchen formula of the girl hidden away because it has been foretold that she will have a son who will slay her father.
Lug is associated with Manannan, from whose land he comes to assist the Tuatha Déa against the Fomorians. His appearance was that of the sun, and by this brilliant warrior's prowess the hosts were utterly defeated.262 This version, found in The Children of Tuirenn, differs from the account in the story of Mag-tured. Here Lug arrives at the gates of Tara and offers his services as a craftsman. Each offer is refused, until he proclaims himself "the man of each and every art," or samildánach, "possessing many arts." Nuada resigns his throne to him for thirteen days, and Lug passes in review the various craftsmen (i.e. the gods), and though they try to prevent such a marvellous person risking himself in fight, he escapes, heads the warriors, and sings his war-song. Balor, the evil-eyed, he slays with a sling-stone, and his death decided the day against the Fomorians. In this account Lug samildánach is a patron of the divine patrons of crafts; in other words, he is superior to a whole group of gods. He was also inventor of draughts, ball-play, and horsemanship. But, as M. D'Arbois shows, samildánach is the equivalent of "inventor of all arts," applied by Cæsar to the Gallo-Roman Mercury, who is thus an equivalent of Lug.263 This is attested on other grounds. As Lug's name appears in Irish Louth (Lug-magh) and in British Lugu-vallum, near Hadrian's Wall, so in Gaul the names Lugudunum (Lyons), Lugudiacus, and Lugselva ("devoted to Lugus") show that a god Lugus was worshipped there. A Gaulish feast of Lugus in August—the month of Lug's festival in Ireland—was perhaps superseded by one in honour of Augustus. No dedication to Lugus has yet been found, but images of and inscriptions to Mercury abound at Lugudunum