語源 は英語でetymology 英語の定義 語源 1. n. origin of a word or phrase; etymology その他の翻訳と定義 etymology 1. 名詞. 語源、語源学。 etymology 1. n. The study of the historical development of languages, particularly as manifested in individual words. 2. n. An account of the origin and historical development of a word. ウィクショナリーから辞書引用辞書