英语词汇extemporaneous的起源、历史背景-英语词源词典

词汇	extemporaneous
词源	extemporaneous adj. "made, done, procured, or furnished 'at the time,'" hence "unpremeditated," 1650s, from Medieval Latin extemporaneus, from Latin ex tempore (see extempore). Earlier was extemporal (1560s); extemporanean (1620s). Related: Extemporaneously; extemporaneousness. Entries linking to extemporaneous extempore adv. 1550s, from Latin phrase ex tempore "offhand, in accordance with (the needs of) the moment," literally "out of time," from ex "out of" (see ex-) + tempore, ablative of tempus (genitive temporis) "time" (see temporal). Of speaking, strictly "without preparation, without time to prepare," but now often with a sense merely of "without notes or a teleprompter." As an adjective and noun from 1630s. updated on September 28, 2014
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extemporaneous adj.