E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
A court of civil and criminal jurisdiction at Westminster, abolished in the reign of Charles I. So called because the ceiling or roof was decorated with gilt stars. Its jurisdiction was to punish such offences as the law had made no provision for.
The chamber where the starrs or Jewish documents were kept was a separate room. The Star Chamber was the Camra Stellta, not Camra Starrta.
It is well known that, before the banishment of the Jews by Edward I., their contracts and obligations were denominated starra, or stars The room in the exchequer wherè the chests were kept was the starr-chamber.Blackstone: Commentaries. vol. ii. book iv. p. 266, a note.