The Bosporatai in the Cherosones get their name from the Cimmerian Bosporus (todays straits of Kerch). AFAIK the spelling of either is fairly interchangable so you'll see them both refered to as either Bosphorus or Bosporus. I usually use Bosphorus for the southern region and Bosporus for the the northern (mainly because I've always seen the greek kingdom in the crimea refered to as the Bosporan Kingdom).Actually there might be a subtle difference in meaning; due to the fact that poros is a noun (passage) and phoros is either an adjective (used as noun; but I forget the right adjective that goes along with ‘adjective’ for full marks here) which derives from a verb with quite a few meanings (bearing, yielding) or it is a noun meaning tribute or yield (incidentally derived from the same verb).
And there are no Bosporatai, but that is a different matter...OK. This meakes it MUCH clearer.
Thanx Ludens.
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