WEIGHTY, a.
1. Having great weight heavy ponderous as a weighty body.
2. Important forcible momentous adapted to turn the balance in the mind, or to convince as weighty reasons weighty matters weighty considerations or arguments.
3. Rigorous severe as our weightier judgment. Not in use.
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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