-ch

From: Pavel Adámek, IMA
Message: 37822
Date: 2005-05-12

In Czech, expressive forms of family relations and personal names
are derived with the suffix -ch [x] added to first syllable of the word,
for example:
bratr > brach, kmotr > kmoch,
Petr > Pech, Matej > Mach ...
 
I would like to know in which other languages
such or similar suffix appears.
 
My guess is that it is augmentative suffix -sko
with expressive metathesis to -kso
and RUKI change to [-xo].
 
      P.A.