The Collaborative International Dictionary
Discommon
Discommon \Dis*com"mon\, v. t.
To deprive of the right of common. [R.]
--Bp. Hall.To deprive of privileges. [R.]
--T. Warton.(Law) To deprive of commonable quality, as lands, by inclosing or appropriating.
--Burrill.
Wiktionary
discommon
vb. 1 To deprive of the right of common. 2 To deprive of privileges. 3 (context legal English) To deprive (lands etc.) of commonable quality, by enclosing or appropriating.