"Türkçe" or "Türkçe dili / lisanı".
Nasılsın
The word for "language" is either "dil" or "lisan" in Turkish, although "lisan" may sound "old-fashioned" to some.
What I've found is that language changes for many reasons: a) The people, over time, added vocabulary to the current language as advances were made in science, technology and industry, and applied...
because people create new words...