1781, from equalize + noun ending -ation.
1580s, "make equal, cause to be equal in amount or degree," from equal (adj.) + -ize. Sports score sense attested by 1925. Related: Equalized; equalizing.
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。