servitude vs villainage

servitude and villainage both are nouns.

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

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

servitude: state of subjection to an owner or master or forced labor imposed as punishment
villainage: the legal status or condition of servitude of a villein or feudal serf

Other hyponyms of servitude include villeinage.

servitude (noun)	villainage (noun)
state of subjection to an owner or master or forced labor imposed as punishment	the legal status or condition of servitude of a villein or feudal serf