['eskjuidʒ]
n.
(封建社会中佃户应为领主服的)兵役,服役, 免役税

Escuage \Es"cu*age\ (?; 48), n. [OF. escuage, F. ['e]cuage, from
OF. escu shield, F. ['e]cu. See {Esquire}.] (Feud. Law)
Service of the shield, a species of knight service by which a
tenant was bound to follow his lord to war, at his own
charge. It was afterward exchanged for a pecuniary
satisfaction. Called also {scutage}. --Blackstone.