From the base of G4639; {shadiness} that {is} obscurity (literally or figuratively): - darkness.
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Matrix
Mat 24:29¶ Immediately after the tribulation of those days shallG4654 the sun be darkenedG4654, and the moon shall not give her light, and the stars shall fall from heaven, and the powers of the heavens shall be shaken:
Rom 1:21Because that, when they knew God, they glorified him not as God, neither were thankful; but became vain in their imaginations, and their foolish heart was darkenedG4654.
Eph 4:18HavingG4654 the understanding darkenedG4654, being alienated from the life of God through the ignorance that is in them, because of the blindness of their heart:
Rev 8:12And the fourth angel sounded, and the third part of the sun was smitten, and the third part of the moon, and the third part of the stars; so as the third part of them was darkenedG4654, and the day shone not for a third part of it, and the night likewise.
Rev 9:2And he opened the bottomless pit; and there arose a smoke out of the pit, as the smoke of a great furnace; and the sun and the air were darkenedG4654 by reason of the smoke of the pit.