villainage vs villeinage

villainage and villeinage both are nouns.

Word	Noun	Adjective	Verb	Adverb
villainage	Yes	No	No	No
villeinage	Yes	No	No	No

As nouns, villainage and villeinage are synonyms defined as:

villainage and villeinage: the legal status or condition of servitude of a villein or feudal serf

villainage (noun)	villeinage (noun)
the legal status or condition of servitude of a villein or feudal serf	tenure by which a villein held land
	the legal status or condition of servitude of a villein or feudal serf