Strong's Definition
from 5774; properly, covered, i.e. dark; abstractly, obscurity, i.e. distress
KJV Usage: dimness
STEPBible — Tyndale Abridged Hebrew Lexicon
מוּעָף (mu.aph) — gloom. gloom, darkness
UBS Dictionary of Biblical Hebrew
noun m · מָעוּף · עֵיפָה
UBS Dictionary of Biblical Hebrew © United Bible Societies, licensed CC BY-SA 4.0.
Brown-Driver-Briggs Hebrew Lexicon
מוּעָף n.[m.] gloom;—Is 8:23. done