A coin equal to 13s. 4d. of the present standard. 4 Steph. Comm. 119n. originally the “solidus” was a gold coin of the Byzantine Empire, but in medieval times the terra was npplied to several varieties of coins, or as descriptive of a money of account, apd is supposed to be the root from which “shilling” is derived
Source: Black's Law Dictionary 2nd Ed (1910)
