alarm

• n. 目覚まし時計; 警報、警告; パニック
• vt.警告する；警鐘を鳴らす

イタリア語のall'armeから。

alarm

alarm: [14] Alarm was originally a call to arms. It comes from the Old Italian phrase all’ arme ‘to the weapons!’ This was lexicalized as the noun allarme, which was borrowed into Old French as alarme, and thence into English. The archaic variant alarum seems to have arisen from an emphatic rolling of the r accompanying a prolongation of the final syllable when the word was used as an exclamation.
=> arm

alarm (n.)

early 14c., from Old French alarme (14c.), from Italian all'arme "to arms!" (literally "to the arms"). An interjection that came to be used as the word for the call or warning (compare alert). Extended 16c. to "any sound to warn of danger or to arouse." Weakened sense of "apprehension, unease" is from 1833. Variant alarum is due to the rolling -r- in the vocalized form. Sometimes in early years anglicized as all-arm. Alarm clock is attested from 1690s (as A Larum clock).

alarm (v.)

1580s, from alarm (n.). Related: Alarmed; alarming.

1. Any escape，once it 's detected，sets off the alarm .

漏洩が発見されるとアラームが鳴ります。

2.He returned to the airport to find his car alarm going off.

彼は空港に帰った時、自分の自動車警報器が鳴ったのを聞いた。

3.He expressed alarm about the government 's increasingly bellicose statements.

彼は政府のますます挑発的な声明に懸念を示した。

4.This has set the alarm bells ringing in Moscow.

モスクワに警報が鳴った。

5.An alarm links the police station to the divisional headquarters.

部署本部と警察署の間に警報器が接続されている。