Why do we need another word? The Genocide Convention of 1948 (a response to the Holocaust) specifically mentions “Imposing measures intended to prevent births

Why do we need another word? The Genocide Convention of 1948 (a response to the Holocaust) specifically mentions “Imposing measures intended to prevent births within the group” and “Forcibly transferring children of the group to another group” in the definition of genocide. https://treaties.un.org/doc/publication/unts/volume%2078/volume-78-i-1021-english.pdf https://treaties.un.org/doc/publication/unts/volume%2078/vol...