Synonyms for Arrowroot (same or very similar meaning)
WordNet sense 1 (white-flowered West Indian plant whose root yields arrowroot starch):
American arrowroot, Maranta arundinaceae, obedience plantWordNet sense 2 (canna grown especially for its edible rootstock from which arrowroot starch is obtained):
achira, Canna edulis, Canna indica, indian shotFrom the ODE community, based on WordNetadd/edit