ppl. a. [f. ENTRENCH v. + -ED1.] In senses of the verb. a. Surrounded with a trench; fortified. Also fig. b. Dug out like a trench, excavated.

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1570–6.  Lambarde, Peramb. Kent (1826), 247. An entrenched ground with three ditches.

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c. 1590.  Marlowe, Faustus, D 1 a. Inuirond round with ayrie mountaine tops, With walles of flint, and deepe intrenched lakes.

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a. 1667.  Cowley, To his Majesty, Wk. II. 571. No deeply entrench’d Islands.

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1785.  Burke, Sp. Fox’s E. India Bill, Wks. X. 229. Their Stativa, or stations … were strong intrenched camps.

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1811.  Wellington, in Gurw., Disp., VII. 164. An intrenched camp should be marked out.

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1861.  Times, 23 July. General M’Clellan attacking the entrenched position of the rebels.

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