demigrate /ˌdiːmaɪˈɡɹeɪt/verb 1/ˈdɛmɪɡɹeɪt/ verb 1forms 3 verb1 •To cancel or return from migration (of e.g. a computer system).The reason is that it is more cost effective to debug and troubleshoot the new environment than to demigrate and lose all the data transactions completed under the new technology. — 2002 demigrate /ˈdɛmɪɡɹeɪt/ verb1 •(no longer used) To emigrate.I demigrate into one of these so well architected minsters — 1653 formsdemigrated · demigrating · demigrates