Eight DA Modules and a Blackmoor Novel planned by TSR!

[Havard]

Yeah, indeed. "Paynims" were a proto-Arabic tribe, before the advent of Islam, though.

So, that could be a hint. I think there was also a pulp series dealing with Ancient Persian mythology
from the 60s that had a "Peshwah" tribe in them, but I don't remember the name. My interest in that one is not so much founded
in Blackmoor, but in that I read the Arslan Senki novels as a child.

Paynim is actually an Anglicized version of the French word "paienime", meaning pagan or heathen.

DungeonDevil had some fairly convinving theories about the origins of the names Afridhi and Peshwah some time ago.

-Havard