a. Being without a moon or moonlight. [ 1913 Webster ]
n. The light of the moon. --
v. i. To work at a second job in addition to one's main occupation; -- often done at night, hence the word. [ PJC ]
n. One who follows an occupation or pastime by moonlight; as:
n. A simpleton; a lunatic. [ Obs. ] [ 1913 Webster ]
a. Illumined by the moon. “The moonlit sea.” Moore. “Moonlit dells.” Lowell. [ 1913 Webster ]