hystero-, hyster-, hysteri- +

(Greek: the womb or uterus; hysteria)

"Hysteric disturbances", that most frequently occur in women were ascribed erroneously by ancient Greeks to the influence of the womb and were, for this reason, called hysteria, "disease of the womb".

This hestero- unit is not related to a similarly spelled hysteres- unit of words referring to "shortcoming, deficiency; to be behind, to come late, to lag; later".