RU'LER, n.
1. One that governs, whether emperor, king, pope or governor any one that exercises supreme power over others.
2. One that makes or executes laws in a limited or free government. Thus legislators and magistrates are called rulers.
3. A rule an instrument of wood or metal with straight edges or sides, by which lines are drawn on paper, parchment or other substance. When a ruler has the lines of chords, tangents, sines, &c. it is called a plane scale.
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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