Dictionary.net

• in comb. =Greek hustera womb, as: -genic, -geny, productive, production, of hysteria; -logy, treatise on the uterus; -tomy, operation of cutting into the uterus.

1919 - The concise Oxford dictionary of current English
By Sir Augustus Henry

• Combining form of the Gr., ystera, womb.

1916 - Appleton's medical dictionary
By Smith Ely Jelliffe