Horse-fed, cropped by horses.
Horse-herd, keeper of horses. "Herd" means any keeper of animals, and is generally joined with other words, e.g. shepherd, swine-herd.
Huddled, twisted together in a small space.
Intent, intention, purpose. In the passage, "For whom is the blood-point whetted and the edge of thine intent?" the meaning is, "Against whom is thy sword sharpened, and against whom is thy purpose so keen?"
Kin, family, relations. Kin of the Wolf, Loki and his children, one of whom was a monstrous wolf which was to fight against the gods at Ragnarok.
Kine, cattle.
Kirtle, a long cloak.
Lack, loss, e.g. "He knew there was ruin and lack." "The lack that made him loth" is used to describe the ring of Andvari which he was unwilling to give up with the rest of his treasure to Loki. v. "To be without," or, "to be found wanting."
Lay, a song.
Lea, a meadow.