A small thick silver coin of the Merovingians. Charles Martel struck them at Aries, Marseilles, etc. Their value varied; some authorities claim that they represent the fourth part of the Tremissis, while others think that they were equal to the Denarius of that period. See Blanchet (i. 24, 27, 102).
Source: Frey's Dictionary (American Journal of Numismatics, Vol. 50, 1916)