(1):

(n.) Valorous service, such as that performed by a vassal; valor; prowess; courage.

(2):

(n.) Political servitude; dependence; subjection; slavery; as, the Greeks were held in vassalage by the Turks.

(3):

(n.) Vassals, collectively; vassalry.

(4):

(n.) The state of being a vassal, or feudatory.

(5):

(n.) A territory held in vassalage.