How Ireland got it's Name

The first name given to the land was "Island of Woods", and this name was given by a warrior of the people of "Nin, son of Bel" Three times indeed was the island all one woodland, as the poet says-"Three times Eire put coverings on her, and three times bareness off her."

The second name was Land at the Limit of the World, and the third name was Noble Island. In the time of the "Firbolg" it had this name on it. The fourth name was Eire, and this is from the name of the queen of the Tuatha DeDanann, that is to say Fodhla and Banbha. The next name was Inis Fail, the Island of stone, which is the stone of destiny that the Tuatha DeDanann brought with them. It is a tabu-stone, for it used to roar under the person fit to be a king when the assembly of the men of the Island met at Tara. But it has not roared from the time of Conchobor forward, for the false idols of the world when Christ was Born.

The next name was Isle of Mists, and the next was Scotia, and then Hibernia, and after that Irlanda. This means the land of Ir, who was the son of Mile, and he was the first man of that clan to be buried on the island. It is said that the Greeks called the land Ogygia, which is to say the most ancient land, and this is suitable, for it is a long, long time since it was first inhabited. Green and flourishing is the grass of the island, Thick are her nut-sweet woods, Plentiful the fruit upon the smooth hills, To depart from her is a cause of misery, To leave her is ground for weakness. Sweet is the sound of her gentle wind Green Banbha enclosed by woods and sweet is the voice of her rivers, The speech of her birds is sleep-music enough, In that land abounding in salmon: Hail to the land of bright fountains.

This is from the book called "Celtic Myths and Legends"
written by Micheal Foss