Fafnir and Ymir

Fafnir noun - (Norse mythology) the Norse dragon that guarded a treasure and was slain by Sigurd.

Ymir and Fafnir are semantically related. In some cases you can replace term "Ymir" with "Fafnir", this nouns are similar.

Ymir noun - (Norse mythology) the primeval giant slain by Odin and his brothers and from whose body they created the world: the sea from his blood; the earth from his flesh; the mountains from his bones; the sky from his skull.

Fafnir and Ymir are semantically related. Sometimes you can replace term "Fafnir" with "Ymir", this nouns are similar.