a. [ad. L. tenebrōsus dark, f. tenebræ darkness: see -OSE.] Dark.

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1490.  Caxton, Eneydos, xv. 53. The sprynge of the daye … hadde putte awaye the nyghte tenebrose.

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1801.  Lusignan, IV. 215. The tenebrose gloom of the place.

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1830.  W. Phillips, Mt. Sinai, II. 274. At night’s meridian tenebrose.

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  b.  fig. Mentally or morally dark; gloomy; obscure in meaning.

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1677.  Gale, Crt. Gentiles, II. III. 208. Those times were very tenebrose.

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1825.  New Monthly Mag., XIII. 450. All this was wormwood in the teeth of the tenebrose Visigoth of the middle ages.

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1839.  Blackw. Mag., XLV. 533. That most tenebrose of all poets, Fulke Greville, Lord Brooke.

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1915.  ‘E. M.,’ The Lathe of Mopheus.

        Hid in a tenebrose valley veiled by the mushroom pine,
Aloof in the lathe of Morpheus—I know a sombre tomb
Engraved on its brazen portal is enchiseled this mystic sign:
‘Behold thou vagrant pilgrim, dark Morphia’s Hetacomb.’

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