Solemn, religious, or dignified
Soline is a French name derived from the Latin 'sollemnis', meaning solemn or religious. It is associated with Saint Solina, a 3rd-century French martyr. The name carries an air of quiet dignity and has gained some popularity in modern France while remaining rare in the United States.
US births per 5-year period, 1990–present (SSA data).
3rd-century Christian martyr from Aquitaine