§ Of the Coming of the Elves and the Captivity of Melkor The Silmarillion

These were the three kindreds of the Eldalië, who passing at length into the uttermost West in the days of the Trees are called the Calaquendi, Elves of the Light. But others of the Eldar there were who set out indeed upon the westward march, but became lost upon the long road, or turned aside, or lingered on the shores of Middle-earth; and these were for the most part of the kindred of the Teleri, as is told hereafter. They dwelt by the sea or wandered in the woods and mountains of the world, yet their hearts were turned towards the West. Those Elves the Calaquendi call the Úmanyar, since they came never to the land of Aman and the Blessed Realm; but the Úmanyar and the Avari alike they call the Moriquendi, Elves of the Darkness, for they never beheld the Light that was before the Sun and Moon.