Mug"gy (?), a. [Compar. Muggier (?); superl. Muggiest.] [Cf. Icel. mugga mist, mugginess. Cf. 4th Mold.]
1.
Moist; damp; moldy; as, muggy straw.
2.
Warm, damp, and close; as, muggy air, weather.
© Webster 1913.
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