Some interesting thoughts. I'm not entirely sure all of them fit, but they're interesting to ponder nevertheless.
I have to say we already knew where Borg came from - that one was pretty obvious ever since "Q Who."
Ferengi is already acknowledged as being based on the Arabic word faranji
, meaning 'foreigner.' Maybe that word comes from your etymology, but it's not where the ST writers got it from.
But still, interesting work.