Final answer:
Feminism is the movement aiming for social, political, and economic equality of the sexes, stemming from the French word 'feminisme' and integral to the Women's Movement and women's liberation.
Step-by-step explanation:
The movement that held the sexes as being socially, politically, and economically equal is known as feminism. Feminism is a social theory or political movement supporting the equality of both sexes in all aspects of public and private life. It seeks to eliminate legal and social restrictions on females to achieve this equality. The concept of feminism originated from the French word 'feminisme', signifying a social movement for women's rights and has been a significant part of social and political change throughout history, especially with events such as the Women's Movement and women's liberation.