for good
永久に
解説 Definition
一時的ではなく永久に、永遠にという意味。二度と元に戻らないことを示す。
For good means permanently and not changing back. It is often used when someone leaves, stops something, or ends a situation completely.
覚え方のコツ Memory Tip
for は『ある状態のまま』と捉えると、for good は『よい方向へ』ではなく『その状態で完全に固定される』と覚えやすいです。for a while が『しばらく』、for now が『今のところ』なのに対し、for good は『これで終わり、もう戻らない』。quit, leave, delete, ban など後戻りしない動詞と相性がよく、be gone for good なら『完全にいなくなる』。good を字面どおり『良い』と読まないのがコツです。
Do not read `good` here as simply 'nice' or 'positive'. In this phrase, `for good` means the situation becomes final and stays that way. It is easy to remember with verbs like `leave`, `quit`, or `delete`, where there is no return.
例文
She left her hometown for good and moved to New York.
彼女は永久に故郷を離れ、ニューヨークに引っ越した。
He quit smoking for good after his doctor's warning.
医者の警告を受けて、彼は永久にタバコをやめた。
The old factory closed down for good last year.
その古い工場は昨年永久に閉鎖された。
for good の類義語・関連語
for good の語源・成り立ち Etymology
good は古英語 god にさかのぼる語で、for good は古い for good and all「完全に」の短縮と考えられます。元の「よい方向へ」が、やがて「もう元に戻らず永久に」という意味へ固まりました。goods, goodness も同根です。
"Good" comes from Old English god. The phrase "for good" is generally understood as a shortened form of the older expression "for good and all," meaning completely and finally. Over time, it stopped suggesting simply something positive and came to mean permanently, with no return. Related words include "goods" and "goodness."
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