The word “genocide” was first coined by Polish lawyer Raphäel Lemkin in 1944 in his book Axis Rule in Occupied Europe. It consists of the Greek prefix genos, meaning race or tribe, and the Latin suffix cide, meaning killing. Lemkin developed the term partly in response to the Nazi policies of systematic murder of Jewish people during the Holocaust, but also in response to previous instances in history of targeted actions aimed at the destruction of particular groups of people. Later on, Raphäel Lemkin led the campaign to have genocide recognised and codified as an international crime.