By what other names did Punjab go by before its present name?

The name “Punjab” today comes from the Persian words Punj and Aab. In the past, this area had different names. In Vedic texts, it was called Saptha Sindhu.  The Greeks called it Pentapotamia. In stories like the Mahabaratha and Ramayana, it was known as Panchnada and Braham Vrata.