late 14c., curacioun, "curing of disease, restoration to health," from Old French curacion "treatment of illness," from Latin curationem (nominative curatio), "a taking care, attention, management," especially "medical attention," noun of action from past-participle stem of curare "to cure" (see cure (v.)). From 1769 as "management, guardianship."
1771, "causing or distinguished by relaxation," from Latin relaxantem (nominative relaxans), present participle of relaxare "to loosen, stretch out" (see relax). As a noun, "a medicine or treatment that relaxes or opens," from 1832. An earlier adjective was relaxative "having the quality of relaxing" (1610s).
c. 1200, in reference to the Christian virtue, "benevolent, kind, manifesting Christian love in its highest and broadest form," from Old French charitable, from charité (see charity). Meaning "liberal in treatment of the poor" is from c. 1400; that of "inclined to impute favorable motives to others" is from 1620s. Related: Charitableness; charitably.
also nitroglycerin, violently explosive oily light-yellow liquid, 1857, from nitro- + glycerin. So called either because it was obtained by treating glycerine with nitric and sulfuric acids or because it is essentially a nitrate (glyceryl trinitrate). The essential element of dynamite; it is a violent poison when ingested, but in minute doses it is used in the treatment of angina and heart failure.
1899 in reference to U.S. foreign policy, "one who advocates a policy of non-participation in foreign affairs" (earlier in reference to treatment of leprosy), from isolation + -ist. As an adjective from 1920. Isolationism is attested in a general sense by 1902; in a U.S. geopolitical sense by 1919 in reference to opposition to joining the League of Nations.
c. 1600, "an attack;" 1670s as "an act of insulting, contemptuous treatment," from French insult (14c.) or directly from Late Latin insultus "insult, scoffing," noun use of past participle of insilire, literally "to leap at or upon" (see insult (v.)). The older noun was insultation (1510s). To add insult to injury translates Latin injuriae contumeliam addere.
"light, flippant banter; an ironical or frivolous treatment of a subject," 1757, from French persiflage, from persifler "to banter" (18c.), from Latin per "through" (from PIE root *per- (1) "forward," hence "through") + French siffler "to whistle, hiss," from collateral form of Latin sibilare "to hiss," which possibly is of imitative origin. Said to have been introduced in English by Chesterfield.
c. 1300, "fact of deserving a certain treatment (for good or ill) for one's behavior," from Old French deserte "merit, recompense," noun use of past participle of deservir "be worthy to have," ultimately from Latin deservire "serve well," from de- "completely" (see de-) + servire "to serve" (see serve (v.)). Meaning "suitable reward or punishment, what one deserves" (now usually plural and with just), is from late 14c.