The literary meaning of Urdu are ‘Royal Army’. Urdu is a Turkish word and thereby it is also called the Language of Army. The people speaking different languages are included in the army therefore, when they formed a common language by mixing the words of different languages, it was called Language of Army.
The words of Arabic, Persian, Latin, Hebrew and Sanrkrit are included in Urdu therefore, it could easily be concluded that Urdu is comparatively a new language. Urdu language is so flexible that it could adopt the words of other languages easily and then it looks that those words are originated in Urdu.
The base of Urdu is Prakriti Bhasha, which was the language of Aryans. Prakriti changed gradually into Brij Bhasha.