v. [UN-2 4 b.] trans. To free (horses) from the traces.

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1604.  Middleton, Father Hubburd’s T., B 1. The fiery Horses of the Sun Were from their golden-flaming Car vntrac’de.

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1819.  W. S. Rose, Lett. N. Italy, I. 87. We again put to the horses, necessarily untraced during the preceding operation.

3