Western Desert (Egypt) as the "Libyan Desert", taking its name from Ancient Libya, which lay between the Nile and Cyrenaica. With the formation of the state of Libya, the term "Western Desert" has come to describe that part of the Sahara in Egypt. To the Ancient Greeks, the term Libya described the whole Saharan littoral west of the Nile to the Atlas mountains. During Roman times the term Libya was limited to Cyrenaica and the region between there and Egypt, which were organized as the provinces of Libya Superior and Libya Inferior. The term Libyan Desert then applied to the area to the
Georgia (country) from the "Karts", the latter being one of the proto-Georgian tribes that emerged as a dominant group in ancient times. The name "Sakartvelo" (საქართველო) consists of two parts. Its root, "kartvel-i" (ქართველ-ი), specifies an inhabitant of the core central-eastern Georgian region of Kartli, or Iberia as it is known in sources of the Eastern Roman Empire. Ancient Greeks (Strabo, Herodotus, Plutarch, Homer, etc.) and Romans (Titus Livius, Tacitus, etc.) referred to early western Georgians as Colchians and eastern Georgians as Iberians ("Iberoi" in some Greek sources). The Georgian circumfix "sa"-X-"o" is a standard geographic construction designating "the area where X