Also see definition of "henotheism" in Bible Study Dictionaries
Word Study
henotheism
CIDE DICTIONARY
henotheism, n. [Gr. e"i`s, "enos`, one + E. theism.].
Primitive religion in which each of several divinities is regarded as independent, and is worshiped without reference to the rest. [1913 Webster]
OXFORD DICTIONARY
henotheism, n. belief in or adoption of a particular god in a polytheistic system as the god of a tribe, class, etc.
Etymology
Gk heis henos one + theos god
Also see definition of "henotheism" in Bible Study Dictionaries
For further exploring for "henotheism" in Webster Dictionary Online