[The Name.] Besides as Kshatrapa, in the Prákrit legends of coins and in inscriptions the title of these dynasties appears under three forms Chhatrapa, [57] Chhatrava, [58] and Khatapa. [59] All these forms have the same meaning namely Lord or Protector of the warrior-race, the Sanskrit Kshatra-pa. [60] It is to be noted that the title Kshatrapa appears nowhere as a title of any king or royal officer within the whole range of Sanskrit literature, or indeed on any inscription, coin, or other record of any Indian dynasty except the Northern and the Western Kshatrapas. According to Prinsep Kshatrapa is a Sanskritized form of Satrapa, a term familiar to the Grecian history of ancient Persia and used for the prefect of a province under the Persian system of government. As Prinsep further observes Satrapa had probably the same meaning in Ariana that Kshatrapa had in Sanskrit, the ruler feeder or patron of the kshatra or warrior class, the chief of a warlike tribe or clan. [61] Prinsep further notes the Persian kings were often in need of such chiefs and as they entrusted the chiefs with the government of parts of their dominions the word came to mean a governor. So during the anarchy which prevailed on the Skythian overthrow of Greek rule in Baktria [62] (B.C. 160) several chiefs of Malaya, Pallava, Ábhíra, Meda, and other predatory tribes came from Baktria to Upper India, and each established for himself a principality or kingdom. Subsequently these chiefs appear to have assumed independent sovereignty. Still though they often call themselves rájás or kings with the title Kshatrapa or Mahákshatrapa, if any Baktrian king advanced towards their territories, they were probably ready to acknowledge him as Overlord. Another reason for believing these Kshatrapa chiefs to have been foreigners is that, while the names of the founders of Kshatrapa sovereignty are foreign, their inscriptions and coins show that soon after the establishment of their rule they became converts to one or other form of the Hindu religion and assumed Indian names. [63]