The Collaborative International Dictionary of English v.0.48:

Snug \Snug\, a. [Compar. Snugger; superl. Snuggest.] [Prov.
   E. snug tight, handsome; cf. Icel. sn["o]ggr smooth, ODan.
   sn["o]g neat, Sw. snugg.]
   1. Close and warm; as, an infant lies snug.
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   2. Close; concealed; not exposed to notice.
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            Lie snug, and hear what critics say.  --Swift.
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   3. Compact, convenient, and comfortable; as, a snug farm,
      house, or property.
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