sublimation (n.)
late 14c., in alchemy, "process of purifying by vaporizing then allowing to cool," from Medieval Latin sublimationem (nominative sublimatio) "refinement," literally "a lifting up, deliverance," noun of action from past participle stem of Latin sublimare "to raise, elevate," from sublimis "lofty, high, exalted; eminent, distinguished" (see sublime).