Boottopping
From BiblePortal Wikipedia
Boottopping [1]
(1): (n.) The act or process of daubing a vessel's bottom near the surface of the water with a mixture of tallow, sulphur, and resin, as a temporary protection against worms, after the slime, shells, etc., have been scraped off.
(2): (n.) Sheathing a vessel with planking over felt.
