G4656
σκοτόω
to darken
σκοτόω, -ῶ (σκότος), [in LXX for חָשַׁךְ, קָדַר, שָׁחַר ;] to darken: Rev.9:2 16:10. Metaphorical, of the mind! pass., Eph.4:18 (cf. σκοτίζω).† (AS)
The KJV translates G4656 in the following manner:
darkness (2x)
Full Thayer's lexicon entry
σκοτόω — skotóō
σκοτόω, σκότῳ: passive, perfect participle ἐσκοτωμενος; 1 aorist ἐσκοτώθην; (cf. WH's Appendix, p. 171); (σκότος); to darken, cover with darkness: Rev 9:2 L T WH;; metaphorically, to darken or blind the mind: σκοτώμενοι τῇ διάνοια, Eph 4:18 L T Tr WH. ((Sophocles), Plato, Polybius, Plutarch, others; the Sept..)
3 occurrences
Ephesians (1), Revelation of John (2)