G4654–σκοτίζω–skotizō

`And immediately after the tribulation of those days, the sun shall be darkened, and the moon shall not give her light, and the stars shall fall from the heaven, and the powers of the heavens shall be shaken;

σκοτισθήσεται, skotisthēsetai “will be darkened,”

`But in those days, after that tribulation, the sun shall be darkened, and the moon shall not give her light,

σκοτισθήσεται, skotisthēsetai “will be darkened,”

because, having known God they did not glorify `Him' as God, nor gave thanks, but were made vain in their reasonings, and their unintelligent heart was darkened,

ἐσκοτίσθη eskotisthē “was darkened”

let their eyes be darkened -- not to behold, and their back do Thou always bow down.'

σκοτισθήτωσαν skotisthētōsan “should be darkened”

And the fourth messenger did sound, and smitten was the third of the sun, and the third of the moon, and the third of the stars, that darkened may be the third of them, and that the day may not shine -- the third of it, and the night in like manner.

σκοτισθῇ skotisthēa “may be darkened”