Member of the Gauts
A modern phonetic spelling of Jocelyn, which originated as a masculine Germanic name brought to England by the Normans. It eventually transitioned to a feminine name and is derived from the tribal name of the Gauts, a Germanic people.
Less common today
Jossalin isn't in the latest US Top 1000. It last peaked at #11,459 in 2008.
US births per 5-year period, 1990βpresent (SSA data).