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  Fortis/Fortes: The sound with thick breath after closing glottis, pushing tongue up and front part of the palate.
 
    Fortis of Stops: bb, dd, gg  
    Fortis of Affricates: zz  
    Fortis of Fricatives: ss  
     
With HanGle, With English => Go
How English got to have Fortis(bb, cc, dd, ff...)? => Fortis
(Flex & Fortis, different from Dual Consonants) => Flex
How got to have ttis(bottom t + fortis)? => tTis
How got to have 'LexTis(flex/fortis)'? => LexTis
   
  Writing Way/Order Phonetic Symbols  
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