mythical being vs Ymir

mythical being and Ymir both are nouns.

Word	Noun	Adjective	Verb	Adverb
mythical being	Yes	No	No	No
Ymir	Yes	No	No	No

mythical being (noun)	Ymir (noun)
an imaginary being of myth or fable	(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