IMPROVISE

Im′pro‐vise″ (?), v. t. [imp. & p. p. Improvised (?); p. pr. & vb. n. Improvising.] [[F. improviser, it. improvvisare, fr. improvviso unprovided, sudden, extempore, L. improvisus; pref. im- not + provisus foreseen, provided. See Proviso.]] 1. 1. To compose, recite, or sing extemporaneously, especially in verse; to extemporize; also, to play upon an instrument, or to act, extemporaneously.
2. 2. To bring about, arrange, or make, on a sudden, or without previous preparation.
Charles attempted to improvise a peace. Motley. 3. 3. To invent, or provide, offhand, or on the spur of the moment; as, he improvised a hammer out of a stone.