To set on one side, to shelve.

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1888.  [The men] who get side-tracked are those who start in life in an occupation for which they have no natural aptitude.—Sturdy Oak (Boston), May (Farmer).

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1910.  Mr. Hughes, it is said, longs for the comforts and ease of private life. We are inclined to think that a plan to return there permanently would evoke a storm of protests only a little less vociferous than would his side-tracking on the Supreme Court bench.—N.Y. Evening Post, April 21.

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