Here are some examples of words derived from "terra":
* Terrestrial: Relating to the earth or its inhabitants.
* Terrain: The physical features of a region, such as hills, valleys, and rivers.
* Terracotta: A type of earthenware pottery.
* Terraforming: The process of modifying a celestial body, such as Mars, to make it habitable.
* Extraterrestrial: Originating or existing outside the earth's atmosphere.
This root is also found in many geographical names, such as "Terra Australis" (Latin for "Southern Land"), which was used to refer to Australia.