the GNU version of the Collaborative International Dictionary of English
verb-intransitive. To become obsolescent.
The Century Dictionary and Cyclopedia
To become obsolescent; fall into disuse.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
v. become obsolete, fall into disuse
Word Usage
"ComCast is already abusing their authority, to "obsolesce" their customer's own equipment so that the customer is forced to lease / buy ComCast's own equipment."