It's not so much an issue of parentage as an issue of orthography. Loanwords are often spelled in accordance with the orthographic rules of the source language,

It's not so much an issue of parentage as an issue of orthography. Loanwords are often spelled in accordance with the orthographic rules of the source language, and words are generally not respelled to indicate changes in pronunciation. This is fairly unusual within Europe, but not so much in Asia -- Thai and Burmese have large numbers of loans that I don't think were respelled. And then there's Japanese.