'Pentarchy' definitions:
Definition of 'Pentarchy'
- Pentarchy \Pen"tar*chy\, n. [Gr. ?: cf. F. pentarchie. See
Penta-, and -archy.]
A government in the hands of five persons; five joint rulers.
--P. Fletcher. "The pentarchy of the senses." --A. Brewer.
[1913 Webster]