The Collaborative International Dictionary of English v.0.48:

Mist \Mist\, v. t. [imp. & p. p. Misted; p. pr. & vb. n.
   Misting.]
   To cloud; to cover with mist; to dim. --Shak.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Mist \Mist\, v. i.
   To rain in very fine drops; as, it mists.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

mist \mist\ (m[i^]st), n. [AS. mist; akin to D. & Sw. mist,
   Icel. mistr, G. mist dung, Goth. ma['i]hstus, AS. m[imac]gan
   to make water, Icel. m[imac]ga, Lith. migla mist, Russ. mgla,
   L. mingere, meiere, to make water, Gr. 'omichei^n to make
   water, 'omi`chlh mist, Skr. mih to make water, n., a mist
   m[=e]gha cloud. [root]102. Cf. Misle, Mizzle, Mixen.]
   1. Visible watery vapor suspended in the atmosphere, at or
      near the surface of the earth; fog.
      [1913 Webster]

   2. Coarse, watery vapor, floating or falling in visible
      particles, approaching the form of rain; as, Scotch mist.
      [1913 Webster]

   3. Hence, anything which dims or darkens, and obscures or
      intercepts vision.
      [1913 Webster]

            His passion cast a mist before his sense. --Dryden.
      [1913 Webster]

   Mist flower (Bot.), a composite plant (Eupatorium
      coelestinum), having heart-shaped leaves, and corymbs of
      lavender-blue flowers. It is found in the Western and
      Southern United States.
      [1913 Webster]

WordNet (r) 3.0 (2006):

mist
    n 1: a thin fog with condensation near the ground
    v 1: become covered with mist; "The windshield misted over"
         [syn: mist, mist over]
    2: make less visible or unclear; "The stars are obscured by the
       clouds"; "the big elm tree obscures our view of the valley"
       [syn: obscure, befog, becloud, obnubilate, haze
       over, fog, cloud, mist]
    3: spray finely or cover with mist

Moby Thesaurus II by Grady Ward, 1.0:

162 Moby Thesaurus words for "mist":
   London fog, London special, Scotch mist, addle, addle the wits,
   air, airy nothing, amorphousness, ball up, becloud, bedazzle,
   befog, befuddle, befuddlement, bemist, bewilder, bewilderment,
   blood rain, blur, bother, botheration, bubble, bug, chaos,
   clabber up, cloud, cloud over, cloud up, confuse, confusion, dark,
   darken, darken over, darkness, daze, dazzle, defocus, dim,
   discombobulate, discombobulation, discomfit, discomfiture,
   discompose, discomposure, disconcert, disconcertion, disorder,
   disorganization, disorganize, disorient, disorientation, disturb,
   disturbance, drisk, drizzle, drizzling mist, embarrass,
   embarrassment, encloud, enmist, entangle, ether, evening mist,
   fall, film, flummox, flurry, fluster, flutter, fog, fogginess,
   frenzy, frost smoke, fuddle, fuddlement, fuss, fuzziness, gauze,
   gout of rain, haze, illusion, indeterminateness, indistinctness,
   jumble, lose resolution, maze, mess, mistiness, misty rain, mix up,
   mizzle, moider, moisture, muddle, muddlement, mumbo jumbo, murk,
   murkiness, mystification, nubilate, obfuscation, obnubilate,
   obscurantism, obscuration, obscure, obscurity, opacity, overcast,
   overcloud, overshadow, oversmoke, pale, patter, pea soup,
   pea-soup fog, peasouper, perplex, perplexity, perturb,
   perturbation, phantom, pitter-patter, pother, precipitation,
   pucker, put out, rain, raindrop, rainfall, rainwater, raise hell,
   rattle, ruffle, shade, shadow, shapelessness, sheet of rain,
   shower, shuffle, smog, smoke, soften, spirit, splatter, sprinkle,
   steam up, stew, sweat, swivet, thin air, throw into confusion,
   tizzy, unclarity, unclearness, unfrozen hydrometeor, unplainness,
   unsettle, unsettlement, upset, vagueness, vapor, wet