The Collaborative International Dictionary of English v.0.48:
Chiefage \Chief"age\ (-[asl]j), n. [OF. chevage, fr. chief head. See Chief.] A tribute by the head; a capitation tax. [Written also chevage and chivage.] [Obs.] [1913 Webster]The Collaborative International Dictionary of English v.0.48:
Chevage \Che"vage\, n. See Chiefage. [Obs.] [1913 Webster]