beyondyoudaoicibaDictYouDict[beyond 词源字典]
beyond: [OE] Beyond is a lexicalization of the Old English phrase be geondan ‘from the farther side’. The second element comes from a prehistoric Germanic *jandana, formed on a base *jan- which also gave English the now largely dialectal yon [OE] and yonder [13]. To German it contributed the demonstrative adjective and pronoun jener ‘that’, and there are related demonstrative forms without the initial jin other Indo-European languages, including non-Germanic ones (Old Slavonic onu ‘that’, for instance, and Sanskrit āna- ‘this one’).
=> yon, yonder[beyond etymology, beyond origin, 英语词源]
beyond (prep.)youdaoicibaDictYouDict
Old English begeondan "beyond, from the farther side," from be- "by," here probably indicating position, + geond "yonder" (prep.); see yond. A compound not found elsewhere in Germanic.