Get a Latin Tutor
Latin word circa comes from Latin circus
circus (Latin)
A circular line or orbit; circle, ring. A racecourse or space where games are held, especially one that is round. The spectators in a circus; a circus.
circum (Latin)
About, around, near. Nearby, at, in the neighbourhood of. Through, among, to About, around. In a circle, all around, on both sides.
circa (Latin)
Around; about Around; near; about. Regarding, concerning.