Laughter
Isiac is a rare variant of the Hebrew name Isaac. It originates from the biblical figure Isaac, whose name was derived from the Hebrew word 'tzachaq', referring to the laughter of his parents when they were told they would have a child in their old age.
Less common today
Isiac isn't in the latest US Top 1000. It last peaked at #4,919 in 2001.
US births per 5-year period, 1990–present (SSA data).
