"The earliest mention of five rivers in the collective sense was found in Yajurveda and a word Panchananda was used, which is a Sanskrit word to describe a land where five rivers meet. [...] In the later period the word Pentapotamia was used by the Greeks to identify this land. (Penta means 5 and potamia, water ___ the land of five rivers) Muslim Historians implied the word "Punjab " for this region. Again it was not a new word because in Persian speaking areas, there are references of this name given to any particular place where five rivers or lakes meet."