"stricken dumb, confused, perplexed," 1680s, past-participle adjective from dumbfound.
"strike dumb with confusion or perplexity," 1650s, dumfound, from dumb (adj.) + ending from confound.
updated on October 17, 2018
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。