Pentarchies is a 11 letter English word. It's valid Words with friends word worth 20 points.
You can make 2012 anagrams from letters in pentarchies (aceehinprst).
From the Greek word pentarchía, dating back to 1580-90. See pent(a)-, -archy
But, as in the Saxon times this country was an heptarchy, it is now a strange sort of pentarchy.
In 1846 Russia was the first power of Europe, and at a great distance ahead of all other members of the pentarchy.