Pure
Katerra is a modern American invention, likely created as a creative elaboration of the name Kate or Katherine. It follows the linguistic pattern of adding the suffix '-erra' to established roots, maintaining the traditional meaning of 'pure' associated with its Greek origins.
Less common today
Katerra isn't in the latest US Top 1000. It last peaked at #3,988 in 1998.
US births per 5-year period, 1990βpresent (SSA data).