from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To enclose (as though behind bars); to imprison.
- v. To prohibit, debar (someone from doing something).
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To bar or shut in; to inclose securely, as with bars.
- transitive v. To stop; to hinder by prohibition; to block up.
from The Century Dictionary and Cyclopedia
- To bar; close or fasten with a bar; make fast.
- To inclose so as to hinder egress or escape; bar up or in.
- To stop; obstruct; bar out.
From Middle French embarrer, from barre ("bar"). (Wiktionary)