batten

Imagine a ship bracing for a storm. Sailors batten down the hatches by securing the openings with battens to keep wind and water out. The phrase then became a metaphor for preparing for bad times, like battening down your finances before an economic downturn, making everything sturdy and safe when trouble is coming.

The word has two well-used meanings that show up in different settings. The first is nautical: batten and the noun batten are linked to strips of timber (or metal) used in sails and on hatches. To batten down the hatches literally means to secure a ship’s openings so wind and water cannot enter during rough weather. That image has grown into the figurative sense: preparing thoroughly for hardship, like saying, "They battened down the hatches before the audit," meaning they tightened controls and braced for risk.

The other meaning appears in phrases like batten on or batten upon. Here it means to thrive, prosper, or grow at someone else’s expense—sometimes in a selfish, exploitative way. For instance, "The corrupt corporation battened on the needs of the poor" means it grew richer by relying on others' hardship.

Historically, the word captures two different human habits: securing yourself against danger, and prospering through dependence on another source. Whether you are bracing for a storm or watching someone thrive on a vulnerable group, batten points to survival through protection and growth through extraction.