I'm writing a fiction where inhabitants live on the Moon, so I want a name for them. I know that 'venusian' means 'of or relating to the planet Venus', 'martian' means 'of or relating to the planet Mars or its hypothetical inhabitants' and so on.
But, after having observed that 'moonian' is not a word, I wonder as to whether there is a term meaning 'of or relating to the Moon or its hypothetical inhabitants'.