very dark (Hebrew #651)

Amos
5:20  Shall not the day
yowm (Hebrew #3117)
a day (as the warm hours), whether literal (from sunrise to sunset, or from one sunset to the next), or figurative (a space of time defined by an associated term), (often used adverb)
KJV usage: age, + always, + chronicals, continually(-ance), daily, ((birth-), each, to) day, (now a, two) days (agone), + elder, X end, + evening, + (for) ever(-lasting, -more), X full, life, as (so) long as (... live), (even) now, + old, + outlived, + perpetually, presently, + remaineth, X required, season, X since, space, then, (process of) time, + as at other times, + in trouble, weather, (as) when, (a, the, within a) while (that), X whole (+ age), (full) year(-ly), + younger.
Pronounce: yome
Origin: from an unused root meaning to be hot
of the Lord
Yhovah (Hebrew #3068)
(the) self-Existent or Eternal; Jehovah, Jewish national name of God
KJV usage: Jehovah, the Lord. Compare 3050, 3069.
Pronounce: yeh-ho-vaw'
Origin: from 1961
be darkness
choshek (Hebrew #2822)
the dark; hence (literally) darkness; figuratively, misery, destruction, death, ignorance, sorrow, wickedness
KJV usage: dark(-ness), night, obscurity.
Pronounce: kho-shek'
Origin: from 2821
, and not light
'owr (Hebrew #216)
illumination or (concrete) luminary (in every sense, including lightning, happiness, etc.)
KJV usage: bright, clear, + day, light (-ning), morning, sun.
Pronounce: ore
Origin: from 215
? even very dark
'aphel (Hebrew #651)
dusky
KJV usage: very dark.
Pronounce: aw-fale'
Origin: from an unused root meaning to set as the sun
, and no brightness
nogahh (Hebrew #5051)
brilliancy (literally or figuratively)
KJV usage: bright(-ness), light, (clear) shining.
Pronounce: no'-gah
Origin: from 5050
in it?