probably from obsolete etymologe, verb, to derive etymologically (from Greek etymologein, from etymon + -logein to discourse, from logos speech) + -er entry 1
1610, in the meaning defined above
英语词典包含469781条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。