Origin of the name Isaac:
The Ecclesiastic Greek form of the Hebrew Yitzchak (he will laugh), which is derived from yitshāq (laughter). The name is borne in the Bible by one of the three patriarchs, the son of Abraham and Sarah and progenitor of the Hebrews. Var: Isaak.
From A World of Baby Names by Teresa Norman. Buy the bookDoes Yitzhak sound...
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