Definition of thearchy in English:

thearchy

Pronunciation /ˈTHēˌärkē/ /ˈθiˌɑrki/

nounthearchies

archaic
  • Rule by a god or gods.

    • ‘There, an attempt to set up a Buddhist thearchy has led to chaos and a left-wing military dictatorship.’

Origin

Mid 17th century from ecclesiastical Greek thearkhia ‘godhead’, from theos ‘god’ + arkhein ‘to rule’.