Difference between Forbid and Disallow

FORBID vs DISALLOW: VERB

To deny, exclude from, or warn off, by express command; to command not to enter.
To have the effect of preventing; preclude.
To command against the doing or use of (something); prohibit.
To command (someone) not to do something.
To command against, or contrary to; to prohibit; to interdict.
To oppose, hinder, or prevent, as if by an effectual command.
To accurse; to blast.
To defy; to challenge.

To utter a prohibition.
To bid or command, as to a thing, that it shall not be done; prohibit by command, or as with authority; issue an order against, as the doing of or being something; interdict: often with a person as indirect object and an act or thing as direct object: as, to forbid the banns (that is, the proclamation of the banns); I forbid you my house (that is, to enter my house).
Make impossible
Keep from happening or arising
To prohibit the use or action of; put under ban; restrain within limits.
To prohibit in effect; stand in the way of; prevent: as, an impassable river forbids the approach of the army.
To defy; challenge.

To refuse allowance or toleration; withhold sanction.
Synonyms To prohibit, forbid, condemn, set aside, repudiate.
To decline or refuse to receive; reject; disown.
To refuse or withhold permission to or for; refuse to allow, sanction, grant, or authorize; disapprove: as, to disallow items in an account.

Prohibition, Banned, Banning, Prohibited, Prohibits, Prohibiting, Foreclose, Interdict, Veto, Forestall, Prevent, Proscribe, Disallow, Preclude, Prohibit

Prevent, Cancel, Annul, Withhold, Outlaw, Ban, Exclude, Reject, Deny, Rescind, Interdict, Veto, Proscribe, Forbid, Prohibit

Ban, Prohibition, Banned, Prohibited, Prohibits, Prohibiting, Foreclose, Interdict, Veto, Forestall, Prevent, Proscribe, Disallow, Preclude, Prohibit

Dismiss, Prevent, Cancel, Withhold, Outlaw, Ban, Exclude, Reject, Deny, Rescind, Interdict, Veto, Proscribe, Forbid, Prohibit

Both Nebraska and federal laws forbid such discrimination.
GOD FORBID THEY NOT GET OFFICE VISIT MONEY!
Antitrust laws attempt to deter or forbid cartels.
JONES: And so they forbid it, you know.
And, God forbid I catch you touching yourself.
In addition, some states forbid felons from voting while in prison, while others forbid voting in prison and on parole.
SHOULD not forbid additional keywords, and MUST not forbid any keywords from the Core vocabulary.
He, who does not forbid what he can forbid, seems to assent.
God forbid if our government should, at any point, forbid us from doing so!
All forbid to or forbid from kiss konfidential deuce hermes?

If True lock the server to disallow writes.
Require or disallow an empty line before comments.
Department may disallow a representative under some conditions.
Use this option to disallow all anachronistic constructs.
House bill will disallow most miscellaneous itemized deductions.
Note that our friends at MISRA disallow unions.
So for them to disallow aircon seems ludicrous.
Secretary shall allow, disallow, or defer such claim.
Department will disallow the machinery and equipment exemption.
This policy is available only when the Device Administrator to Install and Activate apps policy is set to Disallow installation or Disallow activation.