To fortify oneself. 1559, 1566, 1572, N.E.D.

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1704.  My grandmother,… then a child of eleven years, was in a fortified house, or, as it was then vulgarly called, a house which was forted, standing near the church.—T. Dwight, ‘Travels,’ i. 348 (1821).

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1747.  Consider what measures to take about forting the Town.—Westfield (Mass.) Jubilee, p. 132. (N.E.D.)

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1756.  You remain in a body at a certain place, forted in, as if to defend yourselves were the sole end of your coming.—Geo. Washington to David Lewis, ‘Writings’ (1889), i. 360. (N.E.D.)

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1853.  Suppose, now, that we should say to this congregation, and to all the wards in this city, the time has come for us to fort up.—Brigham Young, July 31: ‘Journal of Discourses,’ i. 165.

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