-nomy

-nomy

(word root) distribution, arrangement, management
Examples of words with the root -nomy: astronomy, economy
Abused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary Embree

-nomy

suff.
A system of laws governing or a body of knowledge about a specified field: aeronomy.

[Greek -nomiā, from nomos, law; see nem- in Indo-European roots.]
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.

-nomy

n combining form
indicating a science or the laws governing a certain field of knowledge: agronomy; economy.
[from Greek -nomia law; related to nemein to distribute, control]
-nomic adj combining form
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

-nomy

a combining form meaning “distribution,” “arrangement,” “management”: astronomy; economy; taxonomy.
[< Greek -nomia law. See nomo-, -y3]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.