Aegir and Ymir

Aegir noun - A high wave (often dangerous) caused by tidal flow (as by colliding tidal currents or in a narrow estuary).

Ymir and aegir are semantically related. In some cases you can replace term "Ymir" with "Aegir", 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.

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