West African river, from 15c. Portuguese Rio da Volta, literally "river of return" (perhaps because it was where ships turned around and headed for home) or "river of bend," in reference to its course.
updated on December 04, 2012
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。