The Greek form of the name, Parnos«: (from Iranian * Parna-) , corresponds to Sanskrit Pani-, if it is assumed to be a "Prakritic" development of the… - Asko Parpola

The word pani means dealer, trafficker, from pan (also pan, d. Tamil pan , Greek ponos, labour) .... " A footnote to pan reads:"Sayana takes pan in Veda - to praise, but in one place he admits the sense of vyavahara, dealing. Action seems to me to be its sense in most passages. From pan in the sense of action we have the earlier names of the organs of action, pani, hand, foot or hoof, Lat. penis, d. also piiyu.

In Old Iranian, Proto-Aryan s has become h. In old Persian an ethnic name Daha- is attested, also as a proper noun in the administrative tablets found at Persepolis; the masculine plural is used as the name of a province of the Persian empire, placed before the similarly used name of the Sakas in a Persepolis inscription of Xerxes (h 26). In the Greek sources Herodotus (1,125) is the first to mention the people called Daoi, as a nomadic tribe of the Persians. More accurate information on them , however, is delivered by Alexander's historians. According to Q. Curtius Rufus (8,3) and Ptolemy's Geography (6 ,10,2) , the Dahas lived on the lower course of the river Margos (modern Murghab) or.. in the northern steppe area of Margiana. Pomponius Mela (3,42), based on Eratosthenes, tells that the great bend of the river Oxus towards the northwest begins near the Dahas (juxta Dahas), Tacitus (Ann. 11,10) places the Dahae on the northern border of Areia, mentioning the river Sindes (modern Tejend) as the border. These placements agree neatly with that of Namazga V culture of Margiana and Bactria [in greater Iran].

While virtually no object of clearly West Asiatic origin has been discovered in the Greater Indus Valley, dozens of seals bearing the Indus script have been found in Mesopotamia and the Persian Gulf, along with Harappan weights and jewelry. Cuneiform texts also speak of sea trade with foreign countries, and there is nowadays wide agreement that the most distant of these countries, Meluhha, was the Greater Indus Valley.