Early 18th century; earliest use found in Myles Davies (1662–?1719), bibliographer. Either from Hellenistic Greek ὀρθοδοξία orthodoxy + -an, or from post-classical Latin orthodoxia orthodoxy + -an.
英语词典包含243303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。