Erg (landform) Erg (landform) An erg (also sand sea or dune sea, or sand sheet if it lacks dunes) is a broad, flat area of desert covered with wind-swept sand with little or no vegetative cover. The term takes its name from the Arabic word "ʿarq" (), meaning "dune field". Strictly speaking, an erg is defined as a desert area that contains more than of aeolian or wind-blown sand and where sand covers more than 20% of the surface. Smaller areas are known as "dune fields". The largest hot desert in the world, the Sahara, covers and contains several ergs, such as
Influence of Arabic on other languages non-maghrebi French speakers. Arabic-derived words have entered standard or metropolitan French from two main sources. As is the case for many other European languages, one principal source was Spanish. The other was directly from Maghrebi Arabic as a result of the occupation and colonisation of the Maghreb, particularly Algeria, in the 19th and 20th centuries. Examples of the latter include 'bled', a slang term for place of origin, following this word's usage in the Maghreb, as opposed to the Standard Arabic "balad", 'country', along with the Maghrebi term 'kif kif' and 'tabeeb', a slang term for 'doctor'. A small number