受けた
解説 Definition
underwent は undergo（経験する、受ける）の過去形です。手術・検査・訓練・変化など、重要な過程や処置を受けたことを表します。
Underwent is the past tense of undergo. It means experienced or was subjected to a significant process, treatment, test, change, or procedure at a time in the past.
覚え方のコツ Memory Tip
undergo「処置・過程などを受ける」の不規則過去形です。go が went になるのと同じく、undergo → underwent と変化し、発音は /ˌʌndərˈwent/。underwent surgery、underwent repairs、underwent major changes のように、本人や物が重要な処置・変化を経験した場面で使い、単なる went under と分けます。
Underwent is the irregular past tense of undergo. Because the final element go changes to went, the whole verb changes as undergo → underwent; pronounce it /ˌʌndərˈwent/. Think of a person or thing passing through an important process: a patient underwent surgery, a bridge underwent repairs, or a program underwent major changes. The subject experiences or is subjected to the process rather than simply performing it. Keep underwent as one word and distinguish it from went under, a separate phrase that can mean sank, failed, or became unconscious.
例文
He underwent surgery last week.
彼は先週、手術を受けました。
The bridge underwent repairs after the storm.
その橋は嵐の後に修理を受けました。
The program underwent major changes before its release.
そのプログラムは公開前に大きな変更を受けました。
underwent の類義語・関連語
underwent の語源・成り立ち Etymology
古英語 undergān（下をくぐる・経験する）から。under-（下に）＋ go（行く）の複合語で、went は go の過去形。understand（下に立つ→理解する）と同じ under- を持つ。「下をくぐり抜ける」から「困難な経験を受ける・耐える」の意味に発展した。
Underwent is the past tense of undergo, a compound of under and go. Undergo continues Old English undergān, which could express going beneath something or experiencing and enduring it. The past form follows the inherited irregular pattern of go and went, producing underwent rather than undergoed. Over time, the compound developed its present sense of passing through or being subjected to a process, treatment, examination, or major change.
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