EXTEMPORE
ADJECTIVES
1591 ► SUDDEN done, performed, or prepared on the spur of the moment; extempore, impromptu → obs.
1845 ► AFFLUFF extempore → Sc. (Bk.)
ADVERBS
1300 ► OUT OF HAND at once, immediately; without premeditation, suddenly; extempore
1340 ► SUDDENLY without premeditation; on the spur of the moment; extempore → obs.
1897 ► RIGHT OFF THE REEL on the spur of the moment; impulsively, extempore → Sc.
Lexicophilia 