Tera

Tera is an English given name that likely arose as a variant spelling of Terra, from the Latin word for earth, or as a shortened form of Theresa, itself derived from the Greek name Therasia, possibly connected to the island of Thera in the Aegean Sea. The spelling with a single r may also reflect influence from the Greek prefix tera-, meaning monster or marvel, though this is rarely the intended etymological association for the personal name. Tera functions as a modern English variant alongside Terra, Tara, and Theresa.