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US /ˈmʌsti/ UK /ˈmʌsti/
Freq #29659

Meanings

  1. 1

    [W]hẽ his wordes be wel ſifted, men ſhall find little fine flowre in thẽ, but all very muſtie branne, not worthy ſo muche as to fede either horſe or hogges.

  2. 2
  3. 3
  4. 4

Thesaurus

Synonyms
1 adj · affected by dampness or... fusty
2 adj · having an odour or taste of... fusty
4 adj · of attitudes, ideas,... outmoded
Word family
Derived forms mustmustiedmustilymustiness

Simplified etymology

Musty, recorded from late Middle English, appears to be an alteration of moisty, which is also recorded from late Middle English. Despite its meaning, it apparently did not develop through the proposed Latin route associated with moist.

Etymology

The adjective is derived from Late Middle English musty; further origin uncertain, possibly from one of the following: * From Anglo-Norman muste, moste, variants of moiste, muiste (“moist”), from Old French moiste (“clammy, damp, moist, wet”) (modern French moite (“muggy; sticky, sweaty”)), from a blend of Vulgar Latin *mucidus (from Latin mūcidus (“mouldy, musty”), from Old Latin mūceō (“to be mouldy or musty”) + -idus (suffix meaning ‘tending to’, forming adjectives)) + Latin mustum (“unfermented or partially fermented grape juice, must; new wine”) (from mustus (“fresh; young; unfermented”),...

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