-ence
-ence
suff.
1. State or condition: dependence.
2. Action: emergence.
[Middle English, from Latin -entia (from -ēns, -ent-, -ent) and from Old French -ance, -ance.]
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.
-ence
or-ency
suffix forming nouns
indicating an action, state, condition, or quality: benevolence; residence; patience.
[via Old French from Latin -entia, from -ēns, present participial ending]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
-ance
a suffix used to form nouns either from adjectives in -ant or from verbs: brilliance; appearance.
[Middle English < Old French < Latin]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.