TWILIGHT (2)
Source: 566, 567
twilight (2). Twilight, a. deeply shaded, obscure, dusky, dull
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Twi″light′, a. 1. 1. Seen or done by twilight. Milton.
2. 2. Imperfectly illuminated; shaded; obscure.
O'er the twilight groves and dusky caves. Pope.