habergeon vs ring armor

habergeon and ring armor both are nouns.

Word	Noun	Adjective	Verb	Adverb
habergeon	Yes	No	No	No
ring armor	Yes	No	No	No

As nouns, ring armor is a hypernym of habergeon; that is, ring armor is a word with a broader meaning than habergeon:

habergeon: (Middle Ages) a light sleeveless coat of chain mail worn under the hauberk
ring armor: (Middle Ages) flexible armor made of interlinked metal rings

Other hypernyms of habergeon include chain armor, chain armour, chain mail, mail, ring armour, ring mail.

habergeon (noun)	ring armor (noun)
(Middle Ages) a light sleeveless coat of chain mail worn under the hauberk	(Middle Ages) flexible armor made of interlinked metal rings