This is very much the word of the week as the Liberal Party tears itself apart all ways to Sunday to try to deal with the issue of same-sex marriage. There could be a plebiscite, there could be a postal plebiscite. “Plebiscite” is a political term with Roman origins. In Rome, a “plebiscita” was a decree issued by the Concilium Plebis, which was the popular assembly of the Roman Republic. The gathering was made up of plebeians, who were the commoners in the Republic, but who could pass laws and elect magistrates.