Strong's #3990: ma'aphel (pronounced mah-af-ale')
from the same as 651; something opaque: -darkness.
Brown-Driver-Briggs Hebrew Lexicon:
ma'ăphêl
1) darkness
Part of Speech: noun masculine
Relation: from the same as H651
Usage:
This word is used 1 times:
Joshua 24:7: "unto the LORD, he put darkness between you and the Egyptians, and brought"