Philoprogenitiveness, from the Greek, means, 'love of offspring'. It is one of the mental faculties of phrenology, developed by Franz Joseph Gall. Philoprogenitiveness, classified phrenologically as an affective propensity, is determined by the formation of the very back of the head.
(Phrenology was the science, now generally discredited, which studied the relationships between a person's character and the morphology (structure) of the skull.)