obumbration

obumbration

(ˌɒbʌmˈbreɪʃən)
n
the action of making dim, dark, obfuscated, or eclipsed
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

obumbration

Rare. the act or process of darkening or obscuring.
See also: Darkness
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.