Definify.com
Webster 1913 Edition
Unestablish
Unˊes-tab′lish
,Verb.
T.
[1st pref.
un-
+ establish
.] To disestablish.
[R.]
The Parliament demanded of the king to
unestablish
that prelatical government. Milton.
Webster 1828 Edition
Unestablish
UNESTAB'LISH
,Verb.
T.