circi

The places where these shows were exhibited, are supposed to have resembled the circi in shape, having a sufficient depth of water for the largest vessels to ride in safety.

1823, Pinnock’s Improved Edition of Dr. Goldsmith’s Abridgment of the History of Rome; […], 8th edition, London: […] G[eorge Byrom] & W[illiam] B[udd] Whittaker, […], page li

Naumachiæ.—Naumachiæ were mock naval engagements. This kind of spectacle was enjoyed by the Romans. The Naumachiæ generally took place in the circi and amphitheatres.

1867, Hodder M. Westropp, Handbook of Archæology, page 73

There are two circuses (circi ?), the red and blue, that's why there are two trains. They don't make a big deal of having two shows, but it's not a secret either. In the color posters you can usually detect which one is coming to town from the colors. I think in many places where the circus comes every year, they alternate the two shows every other year.

1990 September 7, Joseph Brennan, “Re: Circus Train”, in rec.railroad (Usenet), message-ID <1990Sep7.035705.15285@cunixf.cc.columbia.edu>

I am doing a research project and would like to see if anyone out there can help me. Circus elements in films. I am trying to identify as many films as possible that contain circuses (circi?) either as metaphor or subject matter.

1995 June 24, james j champoux, “circus elements in films?”, in rec.arts.movies (Usenet), message-ID <DAopHM.EE9@world.std.com>

McCain is trying to pass campaign finance reform that puts a government bueaurocracy^([sic]) in charge of our elections. Not just the presidential circus but all the little circi across the fruited plain.

1997 September 29, Red, “Re: House Republicans”, in alt.current-events.clinton.whitewater (Usenet), message-ID <Bleu-2909972200420001@anx-lkf2055.deltanet.com>