is properly a Roman praenomen, but occurs as the gentile name of one or two persons of no importance. Thus, for instance, we read of a M. Spurius, who was one of the conspirators against Julius Caesar. (Appian, App. BC 2.113.)
A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890