Mammoth Uncensored Word List:
79 words ending with cy, 8 letters long

abeyancy accuracy adamancy adequacy advocacy apostacy blatancy brevetcy buoyancy celibacy clamancy clemency coagency cornetcy currency delegacy delicacy deviancy dormancy efficacy elegancy eminency ensigncy exigency federacy feminacy fervency frequecy fulgency geomancy gramercy imitancy impolicy instancy intimacy isocracy isostacy lambency leniency literacy mordancy myomancy nascency nonfancy normalcy numeracy obduracy opulency peccancy pendency pernancy pharmacy piquancy populacy prophecy pungency radiancy rampancy reagency regnancy retiracy saliency sapiency sequency solvency sprauncy tangency tendency theodicy turgency ultimacy unbouncy unchancy vagrancy valiancy verdancy vergency vibrancy zoomancy