"mouth of a river or valley, opening between hills," 1818 (in Scott), from Gaelic beul "mouth."
updated on April 24, 2017
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。