Done, made, or spoken without advance preparation or planning; extemporaneous or improvised (archaic or rare variant).
A rare or archaic variant of 'extemporary' or 'extemporaneous,' formed from Latin 'ex tempore.' This form has largely fallen out of use in modern English.
In older texts, you might find 'extempory' instead of 'extemporaneous'—language evolves and some word variants simply lose the popularity race.
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