Modern American creation, likely a blend of prefix Sha- and Terria.
Shaterria is a modern invented name, likely originating in the United States. It follows a common 20th-century naming pattern of combining the popular 'Sha-' prefix with the name Terria, which itself may be derived from the Latin 'terra' meaning earth or a variant of Theresa.
Less common today
Shaterria isn't in the latest US Top 1000. It last peaked at #6,182 in 1995.
US births per 5-year period, 1990βpresent (SSA data).