Lunacy (?), n.; pl. Lunacies (#). [See Lunatic.] 1. Insanity or madness; properly, the kind of insanity which is broken by intervals of reason, -- formerly supposed to be influenced by the changes of the moon; any form of unsoundness of mind, except idiocy; mental derangement or alienation. Brande. Burrill.
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Your kindred shuns your house
As beaten hence by your strange lunacy. Shak.
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2. A morbid suspension of good sense or judgment, as through fanaticism. Dr. H. More.

Syn. -- Derangement; craziness; mania. See Insanity.
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