This volume is the first in a series dedicated to the important contributions of Prof. Georges-Jean Pinault to Indo-Aryan studies. The book gathers over twenty of his significant publications on Vedic linguistics and etymological problems, both in French and English. It includes complex issues and detailed discussions about phonetics and morphology of both Old Indo-Aryan and Indo-Iranian languages and deals with the etymology of prominent theonyms. It will be of utmost interest to anyone interested in the history of Indo-Aryan languages, Vedic poetics, Indian culture and Proto-Indo-European comparative linguistics.