The word(s) "tenebrosa" appears 3 time(s) in 3 verse(s) in Quran in Portuguese (Prof. Samir El-Hayek) translation.

(1) Porém o negaram: por isso os açoitou o castigo do dia da nuvem tenebrosa; em verdade, foi o castigo do diafunesto. Connecting to irc. foznet. com. br

(سورة الشعراء, Ash-Shu'araa, Chapter #26, Verse #189)
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(2) E quando as ondas montanhas tenebrosas, os envolvem, invocam sinceramente Deus e, tão logo Ele os põe a salvo, emterra, eis que alguns deles vacilam; entretanto, ninguém nega os Nossos versículos, além do pérfido, ingrato.

(سورة لقمان, Luqman, Chapter #31, Verse #32)
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(3) Do mal da tenebrosa noite, quando se estende.

(سورة الفلق, Al-Falaq, Chapter #113, Verse #3)
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