1595-1605; < Middle French,Old Frenchapanage, apeinaige, equivalent to apan(er) to endow (a younger son or daughter) with a maintenance (< Medieval Latinappānāre; ap-ap-1 + -pānāre, verbal derivative of Latinpānis bread; compare Old Provençalapanar to nourish) + -age-age
c.1600, from Fr. apanage, from apaner "to endow with means of subsistence," from M.L. appanare "equip with bread," from ad- "to" + panis "bread." Originally, provisions made for younger children of royalty. The double -p- restored in French 15c.-16c., in English 17c.