"act of giving validity," 1650s, noun of action from validate.
1640s, from Medieval Latin validatus, past participle of validare "to make valid," from validus (see valid). Related: Validated; validating.
updated on March 07, 2014
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。