As mentioned above, the mythology regarded Frey as the son of Njörd (_Njörðr_), a god of whom very little is really known. It has been supposed that the _Nerthus_, mentioned by Tacitus as being worshipped in common by a number of Germanic tribes, is the same as Njörd, but the fact that Tacitus speaks of Nerthus as a goddess and explains the name as meaning Mother Earth, makes the identification a very doubtful one. According to Snorri, Njörd 'rules over the course of the wind and calms the sea and fire. He is to be called on for voyaging and fishing. He is so rich and wealthy that he may give lands and treasure to whom he will.'
The worship of Njörd in Sweden and Norway is implied in the fact that places named after him are found in certain parts of these countries. When he is mentioned in the Icelandic writings, it is usually in conjunction with Frey. The practice of drinking the second toast to Njörd and Frey 'for peace and plenty' has been already mentioned. In the old heathen form of oath, taken by suitors and others at the legal assemblies, the deities invoked were 'Frey and Njörd and the Almighty God' (probably Thor). The two names are also combined by Egil in a verse (of 934) in which he prays that Frey and Njörd may be angry with King Eirík, while in one of his poems (about 962) he refers to them as the givers of wealth. With this may be compared the proverbial expression 'as rich as Njörd,' which occurs in old Icelandic. In one of Hallfred's verses (of 996) Frey and Njörd, Odin, Thor, and Freyja, are all mentioned together in contrast with God and Christ: in another (of the same time) the poet says, 'I am forced away from Njörd's offspring and made to pray to Christ.' These passages are sufficient to show that the cult of Njörd was closely connected with that of Frey, and make it probable that he was a deity of some importance even in the popular religion, but at best he remains a somewhat vague figure among the Scandinavian gods.
Of the remaining gods known to us from the mythology there are only the faintest traces in the historical sources. Even the original war-god Ty was so completely supplanted by Odin, that no distinct evidence is to be found for his worship in any part of Scandinavia, although Snorri describes him as 'the bravest and stoutest-hearted of the gods,' who had a great share in deciding the victory in battle; 'on him it is good for men of valour to call.' His name was, however, retained in poetic appellations of men (sometimes even of Odin), and was used in the epithets _tý-hraustr_ for a very brave man, and _tý-spakr_ for a clever one.