BLUE, a. blu. One of the seven colors, into which the rays of light divide themselves, when refracted through a glass prism. There are various shades of blue, as sky-blue, or azure, Prussian blue, indigo blue, smalt blue, &c.
Prussian blue, a combination of the oxyd of iron with an acid called ferro-prussic.
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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