jerking
けいれん
解説 Definition
jerking は jerk（急に動く、びくっと動く）の現在分詞・動名詞です。体や物が短く急に動く様子を表し、けいれんのような不規則な動きにも使われます。
The present participle or gerund of “jerk,” describing a body part or object making short, sudden, often repeated movements. In the contexts shown here, it refers to involuntary, irregular motion resembling a twitch or spasm rather than a smooth, controlled movement.
覚え方のコツ Memory Tip
原形 jerk にそのまま -ing を付けた現在分詞・動名詞で、/ˈdʒɜːrkɪŋ/ と発音します。smooth な連続運動の反対として、脚や腕が短く急にガクッと動く像を覚えましょう。keep jerking は反復する動き、a jerking movement はけいれんのような不規則な動きを表します。
Jerking is formed by adding -ing directly to jerk, and it is pronounced /ˈdʒɜːrkɪŋ/. Picture the contrast between smooth motion and a sudden jolt: a leg, arm, or hand moves sharply for a moment, perhaps repeatedly and involuntarily. Common patterns include “kept jerking,” which emphasizes repetition, and “a jerking movement,” which names the type of motion. Connecting it with jerk and jerky helps preserve the central idea of abrupt, uneven movement, while the sentence context shows that this entry concerns motion rather than the insulting noun jerk.
例文
His leg was jerking under the table.
彼の脚がテーブルの下でけいれんしていました。
The patient's arm kept jerking during the test.
検査中、患者の腕はけいれんし続けました。
She noticed a small jerking movement in his hand.
彼女は彼の手に小さなけいれんの動きがあることに気づきました。
jerking の類義語・関連語
類義語
jerking の語源・成り立ち Etymology
jerking は jerk＋-ing。jerk は近代英語の語で、急に引く・ぴくっと動く感覚を表す擬音的な語とされ、語源ははっきりしません。だから jerking は「ガクッと不意に動くこと」で、関連語は jerk、jerky です。
Jerking is the -ing form of jerk. The verb jerk has been used in English since the sixteenth century for a sharp pull, thrust, or sudden movement, but its deeper origin is uncertain. It may have developed as an expressive word imitating the abrupt quality of the action, though this cannot be stated conclusively. Adding -ing creates a participle or gerund describing the action or an ongoing pattern of sudden movement.
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