Modern invented name, likely combining James and Dorian.
Jamorian is a contemporary American creation. It most likely functions as a blend of the classic Hebrew name James, meaning 'supplanter', and the Greek name Dorian, meaning 'of the Doris tribe' or 'gift'.
Less common today
Jamorian isn't in the latest US Top 1000. It last peaked at #7,492 in 2010.
US births per 5-year period, 1990βpresent (SSA data).