The Latin word for EARTH is 'TERRA, ' which is a five-letter word. TERRA is derived from the Proto-Indo-European root *ters- meaning 'dry LAND.' It is also related to the Greek word γῆ (gē), meaning 'LAND' or 'EARTH.' In Roman mythology, TERRA was the personification of the EARTH and one of the primordial deities. The term has been used in many languages to refer to the planet EARTH, including Spanish, Portuguese, French, Italian, and Romanian.