EXAMPLES FROM THE WEB FOR DEMO
This word comes from the Abracadabra: "demo," lungs; "crazy," to rule; hence, to rule by caloric.
On the other side the rock rises sheer and steep, and in it is hollowed out a semi-circular cistern called the Demo.
Debra finished up and stepped off the stage to a polite round of applause, and they started the demo.
short for demonstration (tape, disc, etc.). Music recording given out for promotional purposes, 1963. The word was used earlier to mean "a public political demonstration" (1936).