Dictionary

disallow

verb dis·al·low \ˌdis-ə-ˈla\

: to refuse to allow (something) : to officially decide that (something) is not acceptable or valid

Full Definition of DISALLOW

transitive verb
1
:  to deny the force, truth, or validity of
2
:  to refuse to allow
dis·al·low·ance \-ən(t)s\ noun
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First Known Use of DISALLOW

14th century

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