Usage: 5 forms in 6 verses
Form Translated As     In Verse(s)
σκοτάσουσιν shall darken LXX.Eccl.12.3
σκοτάσει it shall not darken LXX.2Sam.23.4
εσκότασεν darkened LXX.Lam.4.8
was darkened LXX.Ezek.31.15
εσκότασε it darkened LXX.Ps.105.28
εσκότασαν darkened LXX.Lam.5.17

Liddell-Scott-Jones

σκοτάζω (skotazō) to darken G:V

σκοτάζω-άζω,

grow dark, [LXX]:—passive, to be darkened, [Refs 5th c.BC+]

LSJ Scripture Refs: LXX.Ezek.31.15