a. [f. TREACLE sb. + -Y.] Resembling treacle in quality or appearance; having the sweetness or sticky consistence of treacle; also fig. characterized by excessive sweetness: cloyingly sweet; sugared, honeyed.

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1733.  Shaw, Chem. Lect., xi. (1755), 218. A proper, or rich, syrupy, or treacly Substance.

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1800.  W. Taylor, in Monthly Mag., X. 317. It bestows … even on novelty of thought, a flat featureless mien, an insipid treacly sameness,… very unfavourable to impression.

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1837.  T. Hood, in Mem. (1860), I. 159. Whose book … although so treacley … does not please the natives.

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1866.  R. M. Ferguson, Electr. (1870), 243. India-rubber … some specimens of it having become treacly.

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  Hence Treacliness, treacly quality or condition.

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1876.  Leicester Chron., 18 Nov., 5/3. The shiny, horny quality which the opponents of transparent painting call ‘treacliness.’

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1884.  Nature, 22 May, 89/1. The property of viscosity or treaclyness possessed more or less by all fluids is the general influence conducive to steadiness.

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