Easton's Bible Dictionary (1897)
The rendering of a Hebrew word meaning sweeper, occurs only in Isa. 14:23, of the sweeping away, the utter ruin, of Babylon.
Smith's Bible Dictionary (1863)
a brush or broom of twigs for sweeping (Isaiah 14:23)
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
BE'SOM . Isa 14:23. A broom made of twigs.