Italian word sindacato comes from Italian sindaco ((town) mayor. Statutory auditor.)

Detailed word origin of sindacato

Dictionary entry	Language	Definition
sindaco	Italian (ita)	(town) mayor. Statutory auditor.
sindacato	Italian (ita)	(economy, finance) syndicate, trust, cartel, pool. Supervision, control, check, audit. Trade union, labor union, union (finance) syndicated.