spur: [OE] Spur goes back ultimately to Indo- European *sper- ‘hit with the foot, kick’ (source also of English spurn [OE], which originally meant literally ‘hit with the foot, trip over’). From it was descended the prehistoric Germanic noun *spuron, which produced German sporn ‘spur’, Dutch spoor ‘track’ (source of English spoor [19]), and Swedish sporre ‘spur’ as well as English spur. => spoor, spurn
spur (n.)
Old English spura, spora "metal implement worn on the heel to goad a horse" (related to spurnan "to kick"), from Proto-Germanic *spuron (cognates: Old Norse spori, Middle Dutch spore, Dutch spoor, Old High German sporo, German Sporn "spur"), from PIE *spere- "ankle" (see spurn). Related to Dutch spoor, Old English spor "track, footprint, trace."
Generalized sense of "anything that urges on, stimulus," is from late 14c. As a sharp projection on the leg of a cock, from 1540s. Meaning "a ridge projecting off a mountain mass" is recorded from 1650s. Of railway lines from 1837. "Widely extended senses ... are characteristic of a horsey race" [Weekley]. Expression on the spur of the moment (1801) preserves archaic phrase on the spur "in great haste" (1520s). To win one's spurs is to gain knighthood by some valorous act, gilded spurs being the distinctive mark of a knight.
spur (v.)
c. 1200, from spur (n.). Figurative use from c. 1500. Related: Spurred; spurring. Old English had spyrian, but it meant "follow the track of, track down, investigate."
例文
1. The trade pacts will spur an exodus of US businesses to Mexico.
これらの貿易協定は、多くの米国企業をメキシコに押し寄せることになるだろう。
2.It wasn 't a spur -of-the-moment decision.We discused it in detail beforehand.
これは頭が熱くなって決めたことではありません。私たちは事前に綿密に検討した。
3.Redundancy is the spur for many to embark on new careers.
リストラにより、多くの人が新規事業に従事するようになりました。
4.His speech was a powerful spur to action.
彼の話はとても動力がある。
5.Even a small success would spur me on to greater effort.