Top-drain
Top´-drain`
| v. t. | 1. | To drain the surface of, as land; as, to top-drain a field or farm. |
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
| v. t. | 1. | To drain the surface of, as land; as, to top-drain a field or farm. |