Strong's #5318: Nephtowach (pronounced nef-to'-akh)
from 6605; opened, i.e. a spring; Nephtoach, a place in Palestine:--Neptoah.
Brown-Driver-Briggs Hebrew Lexicon:
ּ
nephtôach
Nephtoah = "opening"
1) a spring or source of water on the boundary of the territories of Judah and Benjamin; located northwest of Jerusalem
Part of Speech: noun proper locative
Relation: from H6605
Usage:
This word is used 2 times:
Joshua 15:9: "of the hill unto the fountain of the water of Nephtoah, and went out to the cities"
Joshua 18:15: "and went out to the well of waters of Nephtoah."