Strong's #4588: ma`uwph (pronounced maw-off')
from 5774 in the sense of covering with shade (compare 4155); darkness:--dimness.
Brown-Driver-Briggs Hebrew Lexicon:
ּ
mâ‛ûph
1) gloom
Part of Speech: noun masculine
Relation: from H5774 in the sense of covering with shade [compare H4155]
Usage:
This word is used 1 times:
Isaiah 8:22: "and behold trouble and darkness, dimness of anguish; and they shall be driven to darkness."