Gynecology - From the Greek "gyne", woman. Modern gynecology is the study of women's health.
Economy - From the Greek "oeconomia", household management. Economy is thriftiness and the frugal handling of money or household affairs. Ancient greek women would not have handled finances, but they were well-accustomed to household management and affairs!
Mother - From the Latin "mater", mother. A mother is a female parent, then and now.
Pregnant - From the Latin derivative "gnatus, born. To be pregnant is to be carrying a baby, the woman's chief role in Ancient Greek society, and still a very special and important one for women today!
Female - From the Latin, "femina", woman. This oneis self explanatory!