Dear tm. Based on your handle, I guess that you, as I, are an Ashcnazee. Al caul pauneem, thank you for your query.
Xahaun is not what I wrote. Xazaun usually means Cantor or Reader in shul nowadays.
x is not borrowed from transliteration of Chinese, where it sounds like a French J. It is borrowed from an image in the Russian alphabet that represents the German and Polish Ch.
English Torah would have done nicely for itself , true, but that would have set a false trail regarding the other Kaumautzeem.
Do you have any hypothesis to answer my Three Columns quest?