Old English ae "oath, judicial swearing, solemn appeal to deity in witness of truth or a promise," from Proto-Germanic *aithaz (cognates: Old Norse eier, Swedish ed, Old Saxon, Old Frisian eth, Middle Dutch eet, Dutch eed, German eid, Gothic aits "oath"), from PIE *oi-to- "an oath" (cognates: Old Irish oeth "oath"). Common to Celtic and Germanic, possibly a loan-word from one to the other, but the history is obscure. In reference to careless invocations of divinity, from late 12c.
例文
1. His girlfriend had gone into the witness box and taken the oath .
彼のガールフレンドが証人席に入り、誓った。
2.Under oath ,Aston finally admitted that he had lied.
宣誓の制約の下で、アストンはついに自分が嘘をついたことを認めた。
3.The constitution requires members of parliament to take an oath of allegiance.
憲法では、議員は忠誠を誓わなければならないと規定されている。
4.I have sworn an oath to defend her.
私は彼女を守ることを誓った。
5.Three officers gave evidence on oath against him.