Free man
A rare variant of the name Carolus, which is the Latinized form of Charles. It ultimately derives from the Germanic word 'karal', meaning a free man who was not of noble birth but possessed certain rights.
Less common today
Carols isn't in the latest US Top 1000. It last peaked at #4,293 in 1990.
US births per 5-year period, 1990βpresent (SSA data).