1.  appanage(n = noun.possession) apanage - any customary and rightful perquisite appropriate to your station in life; "for thousands of years the chair was an appanage of state and dignity rather than an article of ordinary use"
is a kind of fringe benefit, perk, perquisite

2.  appanage(n = noun.possession) apanage - a grant (by a sovereign or a legislative body) of resources to maintain a dependent member of a ruling family; "bishoprics were received as appanages for the younger sons of great families"
is a kind of assignment, grant

1.  The portion of land assigned by a sovereign prince for the subsistence of his younger sons. [1913 Webster]

2.  A dependency; a dependent territory. [1913 Webster]

3.  That which belongs to one by custom or right; a natural adjunct or accompaniment. Swift. [1913 Webster]

appanage, n. (also apanage)
1 provision for the maintenance of the younger children of kings etc.
2 a perquisite.
3 a natural accompaniment or attribute.

Etymology:
F ult. f. med.L appanare endow with the means of subsistence (as APO-, panis bread)

N  property, possession, suum cuique, meum et tuum, ownership, proprietorship, lordship, seignority, empire, interest, stake, estate, right, title, claim, demand, holding, tenure, vested interest, contingent interest, beneficial interest, equitable interest, use, trust, benefit, legal estate, equitable estate, seizin, seisin, absolute interest, paramount estate, freehold, fee tail, fee simple, estate in fee, estate in tail, estate tail, estate in tail male, estate in tail female, estate in tail general, limitation, term, lease, settlement, strict settlement, particular estate, estate for life, estate for years, estate pur autre vie, remainder, reversion, expectancy, possibility, dower, dowry, jointure, appanage, inheritance, heritage, patrimony, alimony, legacy, Falcidian law, paternal estate, thirds, assets, belongings, means, resources, circumstances, wealth, money, what one is worth, what one will cut up for, estate and effects, landed property, landed real estate property, realty, land, lands, tenements, hereditaments, corporeal hereditaments, incorporeal hereditaments, acres, ground, acquest, messuage, toft, territory, state, kingdom, principality, realm, empire, protectorate, sphere of influence, manor, honor, domain, demesne, farm, plantation, hacienda, allodium, fief, fieff, feoff, feud, zemindary, dependency, arado, merestead, ranch, free lease-holds, copy lease-holds, folkland, chattels real, fixtures, plant, heirloom, easement, right of common, right of user, personal property, personal estate, personal effects, personalty, chattels, goods, effects, movables, stock, stock in trade, things, traps, rattletraps, paraphernalia, equipage, parcels, appurtenances, impedimenta, luggage, baggage, bag and baggage, pelf, cargo, lading, rent roll, income, maul and wedges, patent, copyright, chose in action, credit, debt, one's own, landed, predial, manorial, allodial, free lease-hold, copy lease-hold, feudal, feodal, to one's credit, to one's account, to the good, to one and his heirs for ever, to one and the heirs of his body, to one and his heirs and assigns, to one and his executors administrators and assign.

N  giving, bestowal, bestowment, donation, presentation, presentment, accordance, concession, delivery, consignment, dispensation, communication, endowment, investment, investiture, award, almsgiving, charity, liberality, generosity, gift, donation, present, cadeau, fairing, free gift, boon, favor, benefaction, grant, offering, oblation, sacrifice, immolation, lagniappe, pilon, grace, act of grace, bonus, allowance, contribution, subscription, subsidy, tribute, subvention, bequest, legacy, devise, will, dotation, dot, appanage, voluntary settlement, voluntary conveyance, amortization, alms, largess, bounty, dole, sportule, donative, help, oblation, offertory, honorarium, gratuity, Peter pence, sportula, Christmas box, Easter offering, vail, douceur, drink money, pourboire, trinkgeld, bakshish, fee, consideration, bribe, bait, ground bait, peace offering, handsel, boodle, graft, grease, blat, giver, grantor, donor, feoffer, settlor, giving, given, allowed, allowable, concessional, communicable, charitable, eleemosynary, sportulary, tributary, gratis, donative, auctor pretiosa facit, ex dono, res est ingeniosa dare.