Emily Dickinson Lexicon

BEG'LER-BEG, n. [See Beg.]

The governor of a province in the Turkish empire, next in dignity to the grand vizier. Each has three ensigns or staffs, trimmed with a horse tail, to distinguish him from a pashaw, who has two, and a beg, who has one. His province is called beglerbeglik. – Encyc.