Mustn't

Meaning

Verb

●

(negative

); used to

that something is

or, in a

, that something is not necessary.

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Origin

mustn't

English

-n't

English

must

English

moste

Middle English (1100-1500)

moste

Old English (ca. 450-1100)

must

Old French (842-ca. 1400)

مست

Persian

𐭬𐭮𐭲

Pahlavi

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