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Vision related roughly beforehand in religious language (6)

Ross

I believe the answer is:

coptic

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'religious language' is the definition.
(I've seen this before)

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(Other definitions for coptic that I've seen before include "Egyptian Christian church" , "Egyptians in the past" , "Egyptian church language" , "Sweet; fungus" , "Ancient Christian church of Egypt" .)

I've seen this clue in The Independent.
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