Or ma ynow (Psa. 114:8) {mah-yen-o'}; or (feminine) ma yanah {mah-yaw-naw'}; from ayin (as a denominative in the sense of a spring); a fountain (also collectively), figuratively, a source (of satisfaction) -- fountain, spring, well.
KJV: In the six hundredth year of Noah's life, in the second month, the seventeenth day of the month, the same day were all the fountains of the great deep broken up, and the windows of heaven were opened.
NASB: In the six hundredth year of Noah's life, in the second month, on the seventeenth day of the month, on the same day all the fountains of the great deep burst open, and the floodgates of the sky were opened.
KJV: And the border was drawn from the top of the hill unto the fountain of the water of Nephtoah, and went out to the cities of mount Ephron; and the border was drawn to Baalah, which is Kirjathjearim:
NASB: From the top of the mountain the border curved to the spring of the waters of Nephtoah and proceeded to the cities of Mount Ephron, then the border curved to Baalah (that is, Kiriath-jearim).