cachou /ˈkaʃuː 
, kəˈʃuː / ▸ noun (plural cachous)
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.
EnglishOxford Dictionary of English
