E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Northern Wagoner (The).
Ursa Major, called Charless wain, or wagon. The constellation contains seven large stars. King Charless Wain is absurd. Charles Wain is a blunder for the Churls or Peasants Wain.
1
By this the northern wagoner has set
His seven fold team behind the stedfast star [the pole-star].