adv. [f. prec. + -LY2.]

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  1.  After the manner of the dawn; roseately.

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1873.  Browning, Red Cott. Nt.-cap, 117. How heaven’s own pure may seem To blush aurorally.

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  2.  After the manner of an aurora (borealis).

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1882.  Piazzi Smyth, in Nature, No. 682. 83. A space, eminently and distinctly aurorally dark, was formed near the middle of the north-east arc itself.

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