- a federation of five states, each under an individual leader or ruler
- government by five rulers
Origin of pentarchyClassical Greek pentarchia: see penta- and -archy
- Government by five rulers.
- A body of five joint rulers.
- An association or federation of five governments, each ruled by a different leader.
Origin of pentarchyGreek pentarkhiā penta- penta- -arkhiā -archy
pent- +"Ž -archy