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1. Para Sinitic Languages

   Linked via "lexical echo"

   Classification and Distribution
   The classification of Para-Sinitic languages remains contentious among historical linguists. The primary difficulty arises from the phenomenon of "lexical echo," where core vocabulary items appear to have been borrowed into early Sinitic (e.g., Middle Chinese) and subsequently re-borrowed back into Para-Sinitic languages in a slightly altered, yet functionally identical, state [2].
   The major recognized branches …