Top-drain :: Top-drain (v. t.) To drain the surface of, as land; as, to top-drain a field or farm..
Top-draining :: Top-draining (n.) The act or practice of drining the surface of land.
Top-dress :: Top-dress (v. t.) To apply a surface dressing of manureto,as land..
Top-dressing :: Top-dressing (n.) The act of applying a dressing of manure to the surface of land; also, manure so applied..