Carrol

Car"rol (?), n. (Arch.) See 4th 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.