arrowroot

n (a) [U] edible starch prepared from the root of an American plant 竹芋粉. (b) [U, C] this plant 竹芋.

arraignment, arrange, arrangement, arrant, array, arrear, arrears, arrest, arresting, arrhythmic, arrival, arrive, arrive at, arrive in (at), arrogance, arrogant, arrogantly, arrogate, arrow, arrowhead, arroyo, arse, arse-hole (US ass-hole), arse-licker, arsenal, arsenic, arson, arsonist, art, art-form, artefact (also artifact), arterial, arteriosclerosis, artery, artesian well, artful, artfully, artfulness, arthritic, arthritis,