Grand Erg Occidental The mean elevation of the Grand Erg Occidental is about 500 m, on average higher than the elevation of the Grand Erg Oriental, but not as high as the neighboring Tademaït to the southwest. This desolate region is a practically uninhabited area; there are no permanent villages and there are no roads crossing it. Grand Erg Occidental The Grand Erg Occidental (, al-ʿIrq al-Gharbī al-Kabīr), (also known as the Western Sand Sea) is the second largest erg in northern Algeria after the Grand Erg Oriental. It covers an area of approximately . The sand dunes in the erg are formed
Arabic nouns and adjectives to ones ending in , with the masculine and feminine ' being used as adjectival forms of the concept-noun (e.g. ) depending on agreement. Thus the feminine ' of ' "partnership, cooperation, participation (definite)", ' is the Arabic word for "socialism," and the word "socialist" (both as an adjective and as the term for one who believes in socialism) is ' in the masculine and "" in the feminine. The Arabic has given rise to English adjectives of nationality for Arabic countries: Iraq"i" (from ), Kuwait"i" (from ), etc. Every verb has associated active and passive participles, as well as