adv. [f. THICK a. + -LY2.] In a thick manner; so as to be thick, in various senses; densely; closely; abundantly; frequently; deeply; obscurely, indistinctly.

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c. 1400.  Laud Troy Bk., 5672. Thei died thanne thikly.

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c. 1430.  Pilgr. Lyf Manhode, II. lvii. (1869), 98. Sum time thou shalt see me thikkeliche and derkeliche.

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1573–80.  Baret, Alv., T 151. Thicklie: groslie: clubbishlie, or blockishlie.

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c. 1611.  Chapman, Iliad, XV. 440. His helmet, thickly plum’d.

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1630.  Drayton, Noah’s Flood, 83. Your sins … so thickly throng.

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1770.  Cook, Voy. round World, III. ii. (1773), 519. Lofty hills, all thickly clothed with wood.

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1860.  Tyndall, Glac., I. xviii. 123. Mont Cervin gathered the clouds more thickly round him.

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1883.  Ld. R. Gower, My Remin., I. iii. 35. The walls of the principal apartments are thickly hung with paintings.

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  b.  In comb. with ppl. or other adjs.

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1797.  T. Park, Sonn., 7. Clouds, thickly-driving, veil the face of day.

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1832.  Motherwell, Poet. Wks. (1847), 8.

        Green lie those thickly-timbered shores
Fair sloping to the sea.

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1900.  Westm. Gaz., 7 Sept., 4/1. A thickly-inhabited district.

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