1891; see ionize + noun ending -ation.
1896, from ion + -ize. Related: Ionized; ionizing. Unrelated to Ionize "to make Ionic in form or fact" (1816), for which see Ionian.
the end of some nouns of action; see -ate + -ion.
updated on October 18, 2016
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。