'Decreased' in the Bible

The water steadily receded from the earth, and by the end of 150 days the waters had decreased significantly.

And the waters decreased continually until the tenth month: in the tenth month, on the first day of the month, were the tops of the mountains seen.

Then Noah sent out a dove to see if the water level had fallen below the surface of the land.

The dove returned to him in the evening, but in its beak there was an olive leaf that it had plucked! So Noah knew that the flood waters had decreased on the land.