The Collaborative International Dictionary of English v.0.48:

Cosey \Co"sey\ (k?"z?), a.
   See Cozy. -- Dickens.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Cozy \Co"zy\ (k?"z?), a. [Compar. Cozier (-z?-?r); superl.
   Coziest.] [Cf. Scot. cosie, cozie, prob. from Gael. cosach
   abounding in hollows, or cosagach full of holes or crevices,
   snug, sheltered, from cos a hollow, a crevice.]
   [1913 Webster]
   1. Snug; comfortable; easy; contented. [Written also cosey
      and cosy.]
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   2. [Cf. F. causer to chat, talk.] Chatty; talkative;
      sociable; familiar. [Eng.]
      [1913 Webster]