Tous-les-mois /(?)/

Tous·-les·-mois

Tous-les-mois

n.
  1. A kind of starch with very large, oval, flattened grains, often sold as arrowroot, and extensively used for adulterating cocoa. It is made from the rootstocks of a species of Canna, probably Canna edulis, the tubers of which are edible every month in the year.