TRE'ATISE, n. L. tractatus. A tract a written composition on a particular subject, in which the principles of it are discussed or explained. A treatise is of an indefinite length but it implies more form and method than an essay, and less fullness or copiousness than a system.
The King James Bible has stood its ground for nearly 400 years. However, during that time the English language has changed, and with it the meanings of some words it used. Here are more than 6,500 words whose definitions have changed since 1611.Wikipedia
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