Modern invented name, possibly related to Court or Asia
Cortasia is a contemporary American coinage. It likely functions as a blend of the prefix 'Cort-' (from names like Courtney or the word court) and the popular suffix '-asia' (inspired by the continent or names like Tasia). It does not have a traditional etymological root.
Less common today
Cortasia isn't in the latest US Top 1000. It last peaked at #10,873 in 1998.
US births per 5-year period, 1990βpresent (SSA data).