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(A proofreader's note regarding “peaceful” and “peaceable”)

Words “peaceful” and “peaceable” (“peace” as a parent)
So clearly are set “to agree”
Since “peace” is “a state of tranquility or quiet,”
Of conflict or violence most free.

So “free of disorder or strife or contention”
Are meanings that one would expect,
But suffixes “able” and “ful” in their senses
Add subtleties we must respect.

With “ful” as the suffix comes “full of”/“resembling”
In special relation to peace;
Thus, equally “empty of strife or contention”
Is “peaceful” when standing at ease.

Occasionally, though, it will posture as “peaceable”
And offer a broader allure. 
Its meaning “relating to peace as condition”
Is also extension for sure.

The “capable” given by “able” as suffix
Hands “peaceable” a meaning distinct:
“Disposed toward peace and there unto inclining.”
So mainly to people it’s linked.

This sense of being active, important distinction,
Distinguishes “peaceable” in use,
For “peaceful” has focus on things that are static,
No agency there to set loose.

“It pictures a scene that is 'calm' and quite 'tranquil,'
So this one is peaceful, indeed.
Our peaceable artists have lauded it perfect;
It echoes their peaceable creed.”

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