buckler vs pavis

buckler and pavis both are nouns.

Word	Noun	Adjective	Verb	Adverb
buckler	Yes	No	No	No
pavis	Yes	No	No	No

As nouns, pavis is a hyponym of buckler; that is, pavis is a word with a more specific, narrower meaning than buckler:

buckler: armor carried on the arm to intercept blows
pavis: (Middle Ages) a large heavy oblong shield protecting the whole body; originally carried but sometimes set up in permanent position

Other hyponyms of buckler include escutcheon, scutcheon, pavise.

buckler (noun)	pavis (noun)
armor carried on the arm to intercept blows	(Middle Ages) a large heavy oblong shield protecting the whole body; originally carried but sometimes set up in permanent position