Here's what rhymes with custodary.
bury dairy cherry berry tarry parry tare barre terry very vary marry fairy merry ferry prairie wary hairy sherry harry nary faerie topiary wherry customary dietary scary statuary ternary pessary apiary bilberry plagiary sectary literary temporary arbitrary capillary commentary hereditary solitary cemetery sanitary budgetary estuary honorary sedentary obituary papillary savagery canary remarry unwary aviary beriberi actuary cassowary equerry humeri lapidary elderberry chokecherry nondairy military ordinary secondary contemporary secretary monetary monastery sanctuary stationary subsidiary urinary adversary judiciary legendary momentary pituitary unitary visionary ancillary dysentery mercenary planetary salutary seminary veterinary commissary emissary fiduciary funerary itinerary mortuary stationery cautionary centenary dignitary tutelary unsanitary bacillary breviary buffoonery legionary dromedary huckleberry uncustomary necessary missionary pulmonary coronary dictionary imaginary tributary corollary apothecary culinary sanguinary epistolary luminary probationary constabulary insanitary concessionary voluptuary unnecessary vocabulary beneficiary disciplinary fragmentary involuntary maxillary pecuniary proprietary reactionary functionary confectionery supernumerary diversionary geostationary recessionary bicentenary nonliterary tercentenary nonhereditary extraordinary preliminary evolutionary inflationary cardiopulmonary deflationary expansionary expeditionary genitourinary paramilitary nonmilitary undersecretary eleemosynary revolutionary discretionary exclusionary interplanetary elocutionary interdisciplinary multidisciplinary counterrevolutionary Words that almost rhyme with custodary
belly jelly deli telly allele smelly underbelly vermicelli barely petty penny jetty teddy bevy jenny many heavy ready fairly rarely steady semi deadly gentry levy heady levee messy belfry deathly pebbly tempi testy breathy dressy faery pesky kepi leggy recce sedgy veggie already twenty healthy gently plenty wealthy lengthy densely fleshy antennae carefree deftly medley sentry sexy sketchy spaghetti sweaty vestry coquetry gayety halfpenny hefty stealthy fidgety hostelry tensely trendy thready lefty wetly directly especially scarcely freshly frenzy squarely unfairly unsteady fleshly machete aplenty libretti maidenly adeptly effendi preciously woodenly assembly friendly correctly intensely epilepsy immensely unhealthy intently apoplexy grotesquely sullenly confetti sacredly catalepsy cognoscenti deviancy marquetry ineptly elementary indirectly complementary expressly excellency confusedly complexly baronetcy penitently incorrectly unfriendly narcolepsy reassembly circumspectly equivalently ambivalently