orosian

from The Century Dictionary.

• Relating to Paulus Orosius, a Spanish priest (born in the latter part of the fourth century, died in the fifth century), or to his works: alluding, usually, to his history (“Historiarum contra paganos libri VII”), known as Hormesta, Ormesta, or Ormista, explained by some as Or[osii] M[undi] Hist[oria] (Orosian History of the World).