“The original name of the Indo/Iranian Goddess was Sarasvati ‘she who possesses waters’. In India she continued to be worshipped by this name which she gave to a small but very holy river in Madhyadesa (Punjab) whereas in Iran Sarasvati became, by normal sound changes Harahvati, a name preserved in the region called in Avestan Harakhvaiti and known to the Greeks as Anacosia, a region rich in rivers and lakes. Originally, Harahvaiti was the personification of the great river which flows down from the high Hara into the sea Vourukasa and is the source of the waters of the world, and just as the wandering Iranians called the great mountains near which they lived Hara, they gave Harahvaitis name to the life giving rivers and their Indian cousins did the same.”
MB