He will laugh
Issiac is a rare phonetic spelling variant of the Hebrew name Isaac. It originates from the biblical name Yitzchaq, which was given to the son of Abraham and Sarah because Sarah laughed when she heard she would conceive a child in her old age.
Less common today
Issiac isn't in the latest US Top 1000. It last peaked at #6,256 in 2006.
US births per 5-year period, 1990–present (SSA data).
