"a form of polytheism characteristic of the Vedic religion, in which one god at a time is considered supreme," 1865, coined in German by Max Müller from Greek kath' hena "one by one" + theism. Müller also coined henotheism (1860), from Greek henos "one," for "faith in a single god" as distinguished from exclusive belief in only one god, in writings on early Hebrew religion.
Examples from the Web for kathenotheism
Historical Examples of kathenotheism
If we must have a name for it, I should call it Kathenotheism.Chips From A German Workshop - Volume I
Friedrich Max Mller