undone
元に戻した
解説 Definition
undone は undo（元に戻す、取り消す）の過去分詞で、元に戻された、取り消されたという意味です。変更や操作が以前の状態に戻ったことを表すときによく使われます。
Returned to an earlier state because a previous change, edit, or action has been reversed or canceled. In this sense, it is the past participle of undo and commonly follows a form of be.
覚え方のコツ Memory Tip
undone は undo「元に戻す」の不規則な過去分詞で、undo–undid–undone と変化し、発音は /ʌnˈdʌn/ です。操作や編集について be undone と言えば「取り消されて以前の状態に戻る」の意。unfinished に近い「未完了」の用法もありますが、ここでは undo an edit の結果として覚えます。
Learn undone as the irregular past participle in the pattern undo–undid–undone, pronounced /ʌnˈdʌn/. The prefix un- reverses the action expressed by do, so an action that has been undone no longer has its previous effect. Picture clicking an Undo command after deleting a paragraph: the deletion is undone, and the paragraph returns. Common patterns include was undone, can be undone, and undo the last change. Undone can also mean unfinished in other contexts, but in editing and software it usually describes a completed action that has been reversed.
例文
The last change was undone.
最後の変更は元に戻されました。
My edit was undone by mistake.
私の編集は誤って元に戻されました。
The deleted paragraph was restored after the action was undone.
その操作が元に戻された後、削除された段落は復元されました。
undone の類義語・関連語
類義語
派生語
紛らわしい語
undone の語源・成り立ち Etymology
古英語 un-（否定）+ don（する）から。do の過去分詞 done に否定接頭辞 un- が付き「されていない・元に戻された」の意。undo（元に戻す）、redo（やり直す）が同根語。「やったことを打ち消す」が原義。
Undone combines the reversing or negative prefix un- with done, the past participle of do. Both elements have been present since Old English, where forms corresponding to un- and dōn could express the reversal or absence of an action. In modern English, undone serves as the past participle of undo, whose principal forms are undo, undid, and undone. Its literal structure conveys that what was done has been canceled or returned to its former state.
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