metempsychosis
noun
me·tem·psy·cho·sis mə-ˌtem(p)-si-ˈkō-səs 
ˌme-təm-ˌsī-
ˌme-təm-ˌsī- : the passing of the soul at death into another body either human or animal
Word History
Etymology
Late Latin, from Greek metempsychōsis, from metempsychousthai to undergo metempsychosis, from meta- + empsychos animate, from en- + psychē soul — more at psych-
First Known Use
1591, in the meaning defined above