thearchy
Concise Oxford English Dictionary © 2008 Oxford University Press:
thearchy /ˈθiːɑːki/
▶noun (pl. thearchies) archaic rule by a god or gods.
– origin C17: from eccles. Gk thearkhia ‘godhead’, from theos ‘god’ + arkhein ‘to rule’.
'thearchy' also found in these Oxford entries:

