dewpond

But it was recovered: the thief had taken it to the top of the hill and thrown it into the dewpond there, no doubt intending to take it out and dispose of it at some more convenient time.

Afoot in England 1881

Dr. Conrad knew all about them, and was aware that one they passed was also a relic of prehistoric man, who had dug it, and didn't live long enough, poor fellow! to know it was a dewpond, or prehistoric.

Somehow Good William Frend De Morgan 1878