By the way, I can understand the use of loanwords for modern things that you did not have in your language, but why use a loanword for something as simple as "thank you" ? Didn't Farsi have a specific word for showing gratitude in its language in the first place? Why is it not used instead?
The Proto-Indo-European root for "no" is *ne, so many (most?) IE languages feature this. e.g. no, non, nyet, nein, ne, na, ni, etc. There are languages from India to Ireland that have this sort of negation. [2]
[1] https://en.wikipedia.org/wiki/List_of_French_loanwords_in_Pe...
[2] https://en.wiktionary.org/wiki/Appendix:Proto-Indo-European/...