| 词汇 | radio |
| 词源 | radio. Radio is an Americanism that came into the language in about 1910, as a shortening of radiotelegraph. The radio in radiotelegraph derives from the Latin radius, beam, ray. See telegraph; telephone; television; wireless. |
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英语词源词典收录了13259条英语词源词条，基本涵盖了全部常用英语词汇的起源、历史，是研究英语词汇或通过词源学英语的必备工具。