我查了牛津词典(OED)
对这个单词的解释是:
thing
(复数)demons
creature, being, thing
1. A living being in general; a creature
2. orig. and chiefly with (good or bad)epithet, applied to supernatural, preternatural, or unearthly beings
语源
Old English [wiht]"thing, creature", of Germanic origin; related to Dutch [wicht]"little child and German [Wicht]"creature"
这个单词在古英语里是"creature" "thing"的意思,没有“灵魂”的含义,后来才引申出超自然的含义。
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同一词典对ghost的解释
ghost
the soul or spirit, as the principle of life
语源
Old English gast(in the sense "spirit, soul"), of Germanic origin; related to Dutch geest and German Geist.
所以wight和ghost是不一样的。