Buddhist Dictionary of Pali Proper Names by G P Malalasekera
Pācīnadesa
Pācīnadesa:The Eastern Province of Ceylon.It was less important than the Dakkhinadesa (See,e.g.,Cv.xlviii.33,41).It is also called the Pubbadesa (E.g.,ibid.,xlv.21) and the Puratthimadesa (Ibid.,xh.33).