Eragrostis tef, known as Xaafii, (Oromiffa), teff, taf (Amharic ጤፍ ṭēff, Tigrinya ጣፍ ṭaff), is an annual grass, a species of lovegrass native to the northern Ethiopian Highlands of Northeast Africa.
Common names include teff, lovegrass, annual bunch grass (English); Ṭeff/Ṭéff (Amharic, both representing the same sound, an ejective consonant); Ṭaffi/xaffi (Oromo, both representing the same sound); Ṭaff (Tigrinya); and mil éthiopien (French - 'Ethiopian millet'). It is also written as ttheff, tteff, thaff, tcheff, and thaft. The word "tef" is connected by folk etymology to the Ethio-Semitic root "ṭff", which means "lost" (because of the small size of the grain).
Read more about Eragrostis Tef: Description, Distribution, History, Cultivation and Uses