-archy(word root) rule, governmentExamples of words with the root -archy: monarchy, oligarchyAbused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary Embree-archysuff. Rule; government: oligarchy.[From words such as (mon)archy.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.-archy n combining form government; rule: anarchy; monarchy. [from Greek -arkhia; see -arch] -archic adj combining form -archist n combining formCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014-archy a combining form meaning ?rule,? ?government,? forming abstract nouns usu. corresponding to personal nouns ending in -arch: monarchy; oligarchy. [Middle English -archie