He will laugh
A variant spelling of the Hebrew name Isaac. It originates from the biblical story of Sarah laughing when she was told she would bear a child in her old age. While the double 'a' spelling is standard, this 'cc' variant is a rare alternative.
Less common today
Isacc isn't in the latest US Top 1000. It last peaked at #1,516 in 2003.
US births per 5-year period, 1990βpresent (SSA data).