utmost [OE] Old English ūt(e)mest meant ‘outermost’. The phrase one’s utmost meaning ‘one’s very best’ dates from the early 17th century. See utter.
英语词源词典收录了6069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。