The present work approaches in detail the totality of questions posed by the evolution of the Sanskrit language. Including the Indo-European and the Indo-Iranian beginnings, the work studies the Vedic language and the problems raised by the standardization following Panini; it reviews the language of inscriptions, and of the Epics, as well as its extension in the Puranas, the Tantras, and the texts of the Karikas, and the language of the commentaries or Bhasyas, ...