désindustrialiser

A common word in French economic and political commentary: to deindustrialize a region or country, i.e. lose its manufacturing base. Almost always discussed in its noun form too, la désindustrialisation, a recurring theme in debates about French industry's decline since the 1980s.

• Cette politique a fini par désindustrialiser toute la région. — This policy ended up deindustrializing the entire region.
• Le pays s'est désindustrialisé rapidement dans les années 1980. — The country deindustrialized quickly in the 1980s.
• Les élus dénoncent ce qui désindustrialise leur territoire. — Elected officials denounce what is deindustrializing their area.

This is a real, frequently used word in French political debate, not a rare technicality — learners sometimes assume the long, Latinate look of the word means it's obscure, when it's actually common in news coverage of the economy.