Monolatry

Monolatry (Greek monos "one" + theos "god") refers to the worship of a single god and the rejection that other gods may be validly worshiped.

Monolatry is to be distinguished with henotheism, which is the worship of a single deity while accepting that other deities may be validly worshiped, and monotheism, which is even more extreme than monolatry: it rejects the very deity of other "gods."

An example of monolatry in Marillia is the religion imposed on the drow by Lolth: she demands the drow worship her, to the exclusion of all other gods.