Yam (vegetable) Yam (vegetable) Yam is the common name for some plant species in the genus "Dioscorea" (family Dioscoreaceae) that form edible tubers. Yams are perennial herbaceous vines cultivated for the consumption of their starchy tubers in many temperate and tropical world regions. The tubers themselves are also called "yams", having numerous cultivars and related species. In parts of the United States and Canada, "yam" is sometimes used to refer to varieties of the unrelated sweet potato ("Ipomoea batatas"). The name, yam, appears to derive from Portuguese "inhame" or Canarian (Spain) "ñame", which derived from West African languages during trade. The main
Varieties of Modern Greek the south-western dialects. Spoken modern vernacular Greek can be divided into various geographical varieties. There are a small number of highly divergent, outlying varieties spoken by relatively isolated communities, and a broader range of mainstream dialects less divergent from each other and from Standard Modern Greek, which cover most of the linguistic area of present-day Greece and Cyprus. Native Greek scholarship traditionally distinguishes between "dialects" proper (διάλεκτος), i.e. strongly marked, distinctive varieties, and mere "idioms" (ιδίωμα), less markedly distinguished sub-varieties of a language. In this sense, the term "dialect" is often reserved to only the main outlying forms listed in