batten
noun
°A thin strip of wood used in construction to hold members of a structure together or to provide a fixing point.
°(nautical) A long strip of wood, metal, fibreglass etc used for various purposes aboard ship, especially one inserted in a pocket sewn on the sail in order to keep the sail flat.
verb
°(nautical) to fasten or secure a hatch etc using battens.
°To fatten.