Strong's #5033: nebek (pronounced nay'-bek)
from an unused root meaning to burst forth; a fountain:--spring.
Brown-Driver-Briggs Hebrew Lexicon:
nêbek
1) spring, springs
Part of Speech: noun masculine
Relation: from an unused root meaning to burst forth
Usage:
This word is used 1 times:
Job 38:16: "Hast thou entered into the springs of the sea? or hast thou walked in the search of the depth?"