Hoi,
Coining new terms to use in the interface, even if based on other words in the language, does not make the interface in that language.
This is the same as saying that English ceased to be a language when someone first wrote WWW and URL as independent words :) Living languages are alive. They grow, change, make choices as any other living thing. Would you stop being yourself just because you had a new haircut or you just learned a word you never heard before?
Berto 'd Sera Personagi dl'ann 2006 per l'arvista american-a Time (tanme tuti vojaotri) http://www.time.com/time/magazine/article/0,9171,1569514,00.html