(ˈ)kat|henōthēˌizəm, kaˈthe-; (|)kat|henō|th-, ka|thenō|th- noun
Etymology: katheno- (from Greek kath' hena one at a time, from kata down, according to, by + hena, accusative singular masculine of heis one) + theism — more at cata- , same
: the worship of one god at a time as supreme without denying the existence of other gods and including the tendency to make different gods supreme one after the other — compare henotheism