improvisation
1786, “act of improvising musically,” from Fr. improvisation, from improviser “compose or say extemporaneously,” from It. improvvisare, from improvviso “unforeseen, unprepared,” from L. improvisus, from in- “not” + provisus “foreseen,” also “provided,” pp. of providere “foresee, provide.” Improvise first recorded 1826.
