from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To refuse to allow: "[The government] disallowed his aging and dying parents any reunion with their only child” ( John Simon).
- transitive v. To reject as invalid, untrue, or improper.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To refuse to allow
- v. To reject as invalid, untrue, or improper
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To refuse to allow; to deny the force or validity of; to disown and reject.
from The Century Dictionary and Cyclopedia
- To refuse or withhold permission to or for; refuse to allow, sanction, grant, or authorize; disapprove: as, to disallow items in an account.
- To decline or refuse to receive; reject; disown.
- Synonyms To prohibit, forbid, condemn, set aside, repudiate.
- To refuse allowance or toleration; withhold sanction.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. command against
Middle English disallowen, from Old French desalouer, to reprimand : des-, dis- + alouer, to approve; see allow.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle English (Wiktionary)