Chapter Carkanet to Carol of C by Webster's Dictionary (1913 Edition)

3. A song of praise of devotion; as, a Christmas or Easter carol.

Heard a carol, mournful, holy.
Tennyson.

In the darkness sing your carol of high praise.
Keble.

4. Joyful music, as of a song.

I heard the bells on Christmans Day
Their old, familiar carol play.
Longfellow.

Carol
(Car"ol) v. t. [imp. & p. p. Caroled or Carolled; p. pr. & vb. n. Caroling, or Carolling.]

1. To praise or celebrate in song.

The Shepherds at their festivals
Carol her goodness.
Milton.

2. To sing, especially with joyful notes.

Hovering swans . . . carol sounds harmonious.
Prior.

Carol
(Car"ol), v. i. To sing; esp. to sing joyfully; to warble.

And carol of love's high praise.
Spenser.

The gray linnets carol from the hill.
Beattie.

Carol
(Car"ol, Car"rol), n. [OF. carole a sort of circular space, or carol.] (Arch.) A small closet or inclosure built against a window on the inner side, to sit in for study. The word was used as late as the 16th century.

A bay window may thus be called a carol.
Parker.