c. 1500, from Middle French sagacité, from Latin sagacitatem (nominative sagacitas) "keenness of perception, quality of being acute," from sagax (genitive sagacis) "of quick perception, acute," related to sagus "prophetic," sagire "perceive keenly," from PIE root *sag- "to track down, trace, seek" (cognates: Old English secan "to seek;" see seek). Also used 17c.-18c. of animals, meaning "acute sense of smell."
例文
1. It required a statesman 's foresight and sagacity to make the decision.
この決定を下すには政治家の見識が必要だ。
2. Sagacity ，unlike cleverness，usually increases with age.
賢明さと聡明さは異なり、通常は年齢とともに増加する。
3.I hesitate to record the many other instances of his sagacity .
彼がどのように頭がいいかについての他の多くの事例を書きたくありません.
4.All his sagacity seemed to desert him.
彼は完全に洞察力を失っているようだ。
5.These inventions had obtained for him the renown of more than human sagacity .