industrial

The word 'industrial' is a direct derivative of the noun 'industry'. Its core, 'industry', entered English in the late 15th century from Latin 'industria', meaning "diligence, purposeful activity." The Latin term itself is built from 'industrius' (diligent), likely from the older verb 'indu-' (in) + 'struere' (to build, pile up), suggesting a sense of building up through effort. The suffix '-al', of Latin origin via French, is a prolific adjective-forming element. Thus, 'industrial' literally means "of or pertaining to diligence or systematic work," a meaning which narrowed and specialized with the 18th-century Industrial Revolution to specifically describe the large-scale, mechanized manufacturing sector.