Idionymon (Greek: ιδιώνυμο, literally "that which has its own name", also translated as "special illegal act" or delictum sui generis), is a Greek legal term referring to a criminal offense which is treated distinctly from the general categories in the Greek Penal Code it would otherwise fit into (i.e. is given its own name) due to the particularity of the circumstances involved. [1] While the concept covers many commonplace criminal offenses, the term is used in particular to refer to a 1929 law directed against left-wing political dissidents who sought to violently overthrow the government.