reader (n.)youdaoicibaDictYouDict[reader 词源字典]
Old English rædere "person who reads aloud to others; lector; scholar; diviner, interpreter," agent noun from rædan (see read (v.)). Compare Dutch rader "adviser," Old High German ratari "counselor." Old English fem. form was rædistre.[reader etymology, reader origin, 英语词源]