Strong's #695: 'ereb (pronounced eh'-reb)
from 693; ambuscade:--den, lie in wait.
Brown-Driver-Briggs Hebrew Lexicon:
'ereb
1) a lying-in-wait
2) covert, lair, den
Part of Speech: noun masculine
Relation: from H693
Usage:
This word is used 2 times:
Job 37:8: "Then the beasts go into dens, and remain in their places."
Job 38:40: "in their dens, in the covert to lie in wait? to lie in wait?"