Henotheism comes to us from the German word Henotheismus, which in turn is derived from Greek hen- (“one”) and theos (“god”). Someone who engages in henotheism worships one god but does not deny that there are others. Max Müller, a respected 19th-century scholar, is credited with promoting the word henotheism as a counterpart to polytheism (“belief in or worship of more than one god”) and monotheism (“the doctrine or belief that there is but one God”). Müller also used the related wordkathenotheism, from Greek kath’ hena (“one at a time”), for the worship of several gods successively.