sublimation n.

1580s, "expressing lofty ideas in an elevated manner," from French sublime (15c.), or directly from Latin sublimis "uplifted, high, borne aloft, lofty, exalted, eminent, distinguished," possibly originally "sloping up to the lintel," from sub "up to" (see sub-) + limen "lintel, threshold, sill" (see limit (n.)). The sublime (n.) "the sublime part of anything, that which is stately or imposing" is from 1670s. For Sublime Porte, former title of the Ottoman government, see Porte.

1590s, "raise to a high place," back-formation from sublimation or else from Medieval Latin sublimatus, past participle of sublimare "to lift up." The word was used in English from 1560s as a past-participle adjective meaning "purified, refined by sublimation." Chemical/alchemical sense of "heat a solid into vapor and allow it to cool again" as a way of extracting a pure substance from dross is from c. 1600. Related: Sublimated; sublimating. As a noun from 1620s.