Circularity (noun)

1. The quality or state of being circular or having a circular shape.
2. Repetition of a series of events or ideas, often in a way that lacks progress or development.

Origin:

Derived from the latin word 'circularis' meaning 'circular'.

Examples:

1. The circularity of the racetrack made it an ideal location for car races.
2. The circularity of the design was emphasized by the repeated use of curves and arcs.
3. The circularity of the argument lacked clear reasoning and left the audience confused.
4. The circularity of the discussion frustrated everyone involved as no solution was reached.
5. The circularity of the debate created a sense of déjà vu, as the same points were made over and over.