exhilarate [M16th] This is from Latin exhilarare ‘make cheerful’, based on hilaris ‘cheerful’ source of hilarity [LME].
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。