Isaac

Isaac is a Hebrew name derived from the root tzahaq, meaning to laugh or to rejoice. In the Hebrew Bible, it is borne by the son of Abraham and Sarah, whose name alludes to the laughter of his aged parents upon learning of his miraculous conception. The name passed into Greek as Isaak and Latin as Isaacus, spreading widely through Jewish, Christian, and Muslim traditions, where the patriarch figures as a central figure of faith. Variant forms and cognates include Isaak, Isak, Izaak, and the Spanish and Portuguese Isac.