A curb or inclosure around and above the top of a well. See cut under pozzo.(noun)
The Century Dictionary (Public Domain)
Use "well-curb" in a sentence
"The water-man from the well-curb put in a plea for the small architect, saying that it was only the play of a baby and did not much disfigure my garden."
"The well-curb, with its long sweep and old oaken bucket, brings memories, to some of us, of refreshing droughts of pure water, and of delicious cream and butter rolls, which the moss-covered stone shelves far down the well held securely from possible taint."
"The creature, possessed by some sudden frolic, darted away behind the well-curb."