ation
接尾辞 -ation
解説 Definition
動詞から名詞を作成する接尾辞。行動、プロセス、または状態を表現する単語の一部として機能します。
The suffix -ation forms nouns, often from verbs, that denote an action, process, result, or resulting state. It appears in words such as creation, organization, information, and preparation, with spelling adjustments determined by the base word.
覚え方のコツ Memory Tip
-ation は動詞語幹に付いて「行為・過程・結果・状態」の名詞を作る接尾辞。inform→information、create→creation、organize→organization のように、完成語の末尾ごと覚える。発音は通常 /ˈeɪʃən/ ではなく、語全体の中で弱い /eɪʃən/ または /əʃən/ となり、強勢位置は語ごとに確認する。
Treat -ation as a signal that a word names an action, process, result, or state. Build families instead of memorizing isolated forms: create becomes creation, prepare becomes preparation, and organize becomes organization. Notice that English spelling does not always involve simply adding four letters; the visible base may change, so learn the complete noun beside its verb. In pronunciation, -ation commonly contains /eɪʃən/, but the main stress usually falls on the syllable immediately before it, as in preparation and organization. Compare -ation with other noun-forming endings such as -ment and -ance, which do not attach to exactly the same verbs.
例文
The suffix -ation transforms verbs into abstract nouns.
接尾辞-ationは動詞を抽象名詞に変換します。
Words with -ation often describe processes or results of actions.
-ationを含む単語はしばしばプロセスまたは行動の結果を説明します。
Understanding the -ation suffix helps in learning vocabulary.
-ation接尾辞を理解することは語彙学習を助けます。
ation の類義語・関連語
派生語
紛らわしい語
ation の語源・成り立ち Etymology
ラテン語の過去分詞語尾 -atus と名詞化接尾辞 -io が結合した -atio(n-) に由来。動作・過程・結果を表す名詞を作る。creation（創造）や information（情報）など英語の最頻出接尾辞の一つ。
English -ation developed through French and Latin from Latin nouns ending in -atio, with the stem form -ation-. These nouns were commonly related to verbs whose past participles ended in -atus. The suffix came to mark an action, process, result, or state and became highly productive in learned English vocabulary. Many familiar examples, including creation, preparation, and information, entered as whole Latin- or French-derived words rather than being newly formed within English.
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