[A playful formation on BETWEEN, after words from L., such as extremity, vicinity: see -ITY.] Intermediateness of kind, quality or condition; anything intermediate.

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1760.  H. Walpole, Corr. (1820), II. 174 (D.). The house is not Gothic, but of that betweenity that intervened when Gothic declined and Palladian was creeping in.

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1824.  Miss Mitford, Village (1863), 20. A little ruinous cottage, white-washed once, and now in a sad state of betweenity.

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1824.  Q. Rev., XXXI. 167. It is really provoking to find [Miss Mitford using] such low and provincial corruptions of language as ‘transmogrified,’ ‘betweenity,’ ‘dumpiness.’

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1836.  Southey, Lett. (1856), IV. 448. To rejoin heads, tails, and betweenities, which Hayley had severed.

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