"Extemporized" is a word in ENGLISH

Extemporaneous; unpremeditated.

Composed, performed, or uttered on the spur of the moment, or without previous study; unpremeditated; off-hand; extempore; extemporary; as, an …

Speaking or writing done extempore.

Done or performed extempore.

Without previous study or meditation; without preparation; on the spur of the moment; suddenly; extemporaneously; as, to write or speak …

The quality of being done or devised extempore

The act of extemporizing; the act of doing anything extempore.

To do, make, or utter extempore or off-hand; to prepare in great haste, under urgent necessity, or with scanty or …

To speak extempore; especially, to discourse without special preparation; to make an offhand address.

One who extemporizes.

of Extemporize

A piece composed or played at first thought; a composition in the style of an extempore piece.

Offhand; without previous study; extemporaneous; extempore; as, an impromptu verse.

To improvise; to extemporize.

Unpremeditated; impromptu; extempore.

To compose, recite, or sing extemporaneously, especially in verse; to extemporize; also, to play upon an instrument, or to act, …

Hence, one who recites or sings poems for a livelihood; one who makes and repeats verses extempore.