Strongs: H3543
H3543 @ כּהה kâhâh kaw-haw' A primitive root; to be {weak} that {is} (figuratively) to despond (causatively {rebuke}) or (of {light} the eye) to grow dull: - {darken} be {dim} {fail} {faint} {restrain} X utterly.
Genesis:27:1
Deuteronomy:34:7
1Samuel:3:13
Job:17:7
Isaiah:42:4
Ezekiel:21:7
Zechariah:11:17