alert

• vt.警告する；注意を喚起する；気づかせる
• adj.注意深い、用心深い；注意深い
• n. 警戒、警戒、警報
• n. （アラート）人の名前；（西）アレット

イタリア語のall'ertaから。すなわち、すべて壁に向かって。

alert

alert: [17] Alert comes, via French, from an Italian phrase all’ erta ‘on the look-out’, or literally ‘at the (alla) watch-tower (erta)’. Erta was short for torre erta, literally ‘high tower’, in which the adjective erta ‘high’ came ultimately from Latin ērectus, the past participle of ērigere ‘raise’.
=> erect

alert (adv.)

"on the watch," 1590s, from French alerte "vigilant" (17c.), from phrase à l'erte "on the watch," from Italian all'erta "to the height," from erta "lookout, high tower," noun use of fem. of erto, past participle of ergere "raise up," from Latin erigere "raise" (see erect). The adjective is attested from 1610s, the noun from 1803, and the verb from 1868. Related: Alerted; alerting.

1. The armed forces were on high alert to guard against any retaliation.

武装部隊は報復行動が起こらないように高度な警戒を維持している。

2.They want to be on the alert for similar buying opportunities.

彼らは、類似の購入機会に関する情報をいつでも把握したいと考えています。

3.The bank is alert to the danger.

銀行は危険を十分に意識している。

4.All the Plymouth hospitals are on red alert .

プリマスのすべての病院は非常事態にある。

5.Soldiers and police have been put on alert .

兵士も警察も警戒態勢に入っている。