Definition of cachou in English:

cachou

Pronunciation /kaˈSHo͞o/ /kæˈʃu/ /ˈkaSHo͞o/ /ˈkæʃu/

nouncachous

dated
  • A pleasant-smelling lozenge sucked to mask bad breath.

Origin

Late 16th century (in the sense ‘catechu’): from French, from Portuguese cachu, from Malay kacu. The current sense dates from the early 18th century.