chamfron vs testiere

chamfron and testiere both are nouns.

Word	Noun	Adjective	Verb	Adverb
chamfron	Yes	No	No	No
testiere	Yes	No	No	No

As nouns, chamfron and testiere are synonyms defined as:

Other synonyms of chamfron include chanfron, front-stall, frontstall.

chamfron (noun)	testiere (noun)
medieval plate armor to protect a horse's head	medieval plate armor to protect a horse's head