GRC
Bailly
c. δνόφος.
Bailly 2020 Hugo Chávez Gérard Gréco, André Charbonnet, Mark De Wilde, Bernard Maréchal & contributeurs / Licence Creative Commons Attribution - Pas d'Utilisation Commerciale - Pas de Modification — « CC BY-NC-ND 4.0 »
LSJ
later form for δνόφος, darkness, Chron.Lind. D. 28, Ep. Hebr. 12.18, D.Chr. 34.37 (pl.), Luc. Peregr. 43; pl., storm-clouds, Arist. Mu. 391b12.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
Pape
ὁ, = δνόφος, Finsternis, Dunkel ; im plur. Arist. mund. 2 ; Luc. Peregrin. 42.
Pape, Griechisch-deutsches Handwörterbuch (3. Aufl., 1914)
TBESG
γνόφος (later form of δν-),
[in LXX for אָפֵל, עֲרָפֶל, etc. ;]
darkness, gloom (including 'an element of tempest,' Tr., Syn., §with): Heb.12:18.†
SYN.: ἀχλύς, ζόφος, σκότος (Tr., l.with; DB, i, 457a). (AS)
Translators Brief lexicon of Extended Strongs for Greek based on Abbot-Smith, A Manual Greek Lexicon of the New Testament (1922) (=AS), with corrections and adapted by Tyndale Scholars