Oberson vs faerie

Oberson and faerie both are nouns.

Word	Noun	Adjective	Verb	Adverb
Oberson	Yes	No	No	No
faerie	Yes	No	No	No

As nouns, faerie is a hypernym of Oberson; that is, faerie is a word with a broader meaning than Oberson:

Oberson: (Middle Ages) the king of the fairies and husband of Titania in medieval folklore
faerie: a small being, human in form, playful and having magical powers

Other hypernyms of Oberson include faery, fairy, fay, sprite.

Oberson (noun)	faerie (noun)
(Middle Ages) the king of the fairies and husband of Titania in medieval folklore	the enchanted realm of fairies
	a small being, human in form, playful and having magical powers