, from Old English mōste ("had to"), 1st & 3rd person singular past tense of mōtan. From Proto-Germanic *mōtaną. Cognate with Dutch moest ("had to"), German musste ("had to"), Swedish måste ("must, have to, be obliged to"). More at mote.
From Middle English must, from Old English must and Old French must, most, both from Latin mustum.
From Persian مست ("drunk, inebriated"), from Middle Persian 𐭬𐭮𐭲.
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