Orbia gens
The gens Orbia was a minor plebeian family at Rome. No members of this gens are known to have held any magistracies, but many of them are known from inscriptions. The most illustrious of the family may have been the jurist Publius Orbius, a contemporary of Cicero. Origin. The nomen "Orbius" is derived from the cognomen "Orbus", a waif or orphan. It is the cognate of the Sabine or Oscan nomen "Orfia". At least two other gentilicia are derived from "Orbius" using different suffixes: "Orbilius" using the diminutive suffix , and "Orbicius" using the suffix . Praenomina. The Orbii used  a wide variety of praenomina, of which the most important were "Marcus" and "Lucius". The family also used "Publius" and "Titus", and there are few examples of "Gaius", "Aulus", and "Quintus". All of these were very common names throughout Roman history. There is also a single instance of "Decimus", a much less common name.