"excuse for being," 1864, in letter of J.S. Mill, from French raison d'être, literally "rational grounds for existence."
updated on March 27, 2023
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。