1932, proprietary name in U.S. for fluorocarbons used in refrigeration technology. "The name was apparently constructed from fre(eze) + -on used as an arbitrary suffix" [Flood].
updated on October 10, 2017
英语词源词典收录了45867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。