lune β€” MOON

[LEW-nh] (n. f.) Car cuts you off: what a lunatic! Guy wears plaid shorts with a striped shirt and cowboy boots: look at that lunatic! Back in the 14th century when the word was coined, you had to certifiably, clinically nuts to be lunaticβ€”and also dependent on the changes of the moon. Scientists thought there was a link between our satellite and certain insane folks, so they named the condition lunacy after the French word lune, which means moon.