the GNU version of the Collaborative International Dictionary of English
v. To convert into ether, or into subtile fluid; to saturate with ether.
v. To render ethereal or spiritlike.
The Century Dictionary and Cyclopedia
To make ethereal; purify and refine; spiritualize. Also spelled etherealise.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
v. make ethereal
Word Usage
"Study Perugino and Raphael, see how they raise human nature and etherealize it till we see the divinity of soul in the faces of their saints and martyrs."