Henotheism

Worship of a single god while not denying the existence or possible existence of other deities

Henotheism is the worship of a single, supreme god that does not deny the existence or possible existence of other deities that may be worshipped. Friedrich Schelling (1775–1854) coined the word, and Friedrich Welcker (1784–1868) used it to depict primitive monotheism among ancient Greeks.

This keyword could refer to multiple things. Here are some suggestions: