c. 1600, "provision made for the younger children of royal or noble families," from French appanage (16c.), restored from earlier apanage (13c.), a term in feudal law, from apaner "to endow with means of subsistence," from Medieval Latin appanare "equip with bread," from ad "to" (see ad-) + panis "bread," from PIE root *pa- "to feed." The restored double -p- was subsequently abandoned in French. Meaning "dependent territory" is from 1807.