Conlang, Glossolalia, daiin pronounced

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This will come to you the readers as a surprise, I have found the Authors full name and I believe he was a You are not allowed to view links. Register or Login to view., Mec was found there.  His name is You are not allowed to view links. Register or Login to view. You are not allowed to view links. Register or Login to view. in You are not allowed to view links. Register or Login to view.! ckhar shal ckhar shal Mec is abbreviated I surmise.  Mec comes from Mecco or Meco.

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From Meco, a common derivative of the first name Domenico, meaning: sacred to God 

Mecacci, Mecarelli, Mecarini, Mecarozzi, Mecca, Mecchi, Mecci, Mecco, Meccoli, Mechelli, Mecherini, Mechi, Mechini, Meco, Mecocci, Meconcelli, Meconi, Mecozzi, Mecucci, Mecuzzi

[url=https://www.italyheritage.com/genealogy/surnames/etymology/m/]https://www.italyheritage.com/genealogy/surnames/etymology/m/

This is symbolic and a metaphor and I don't think there implying a sabor tooth tiger.  It's Leo Mec saying he is speaking in tongues and it's depicting a cat symbolic of Leo with it's tongue sticking out in August.

So circa 1005-6 and Leo Mec of Italy author of MS-408.