Laughter
Izick is a modern phonetic spelling variant of the Hebrew name Isaac. It originates from the biblical name Yitzchaq, which was derived from the word 'tzachaq', meaning to laugh, in reference to Sarah's reaction when told she would bear a child in her old age.
Less common today
Izick isn't in the latest US Top 1000. It last peaked at #4,255 in 2009.
US births per 5-year period, 1990βpresent (SSA data).