From 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.]
[1913 Webster]
2. [Cf. F. causer to chat, talk.] Chatty; talkative;
sociable; familiar. [Eng.]
[1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Cozy \Co"zy\, n. [See Cozy,a.]
A wadded covering, often decorative, for a teakettle or other
vessel to keep the contents hot. Also called tea cozy
[1913 Webster +PJC]