The Indo-Aryan languages are spoken by at least 700 million people throughout India, Pakistan, Bangladesh, Nepal, Sri Lanka and the Maldive Islands. They have a claim to great antiquity, with the earliest Vedic Sanskrit texts dating to the end of the second millennium B.C. With texts in Old Indo-Aryan, Middle Indo-Aryan and Modern Indo-Aryan, this language family supplies a historical documentation of language change over a longer period than any...