- the starchy, tuberous root of any of various climbing vines of the genus Dioscorea, cultivated for food in warm regions.
- any of these plants.
- the sweet potato.
- Scot. potato(def 1).
- any of various twining plants of the genus Dioscorea, of tropical and subtropical regions, cultivated for their edible tubers: family Dioscoreaceae
- the starchy tuber of any of these plants, which is eaten as a vegetable
- Southern US any of certain large varieties of sweet potato
- a former Scot name for the (common) potato
n.1580s, from Portuguese inhame or Spanish igname, from a West African language (cf. Fulani nyami “to eat;” Twi anyinam “species of yam”); the word in American and Jamaican English probably is directly from West African sources.