An alternate spelling of beglerbeg; a high-ranking Ottoman governor or military commander.
From Turkish beylerbeyi, spelled differently to match the pronunciation of the Turkish bey (sounding like 'bay') rather than using 'beg.' This is a phonetic variant reflecting different transliteration choices.
The spelling 'bey' versus 'beg' for the same Turkish word shows how transliteration is actually a creative act—writers had to choose whether to spell phonetically or etymologically, and different people made different choices, all reasonable.
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