Yitro, Yithro, Yisroi, Yisrau, or Yisro (יִתְרוֹ‎, Hebrew for the name "Jethro," the second word and first distinctive word in the parashah) is the seventeenth weekly Torah portion (פָּרָשָ×ה‎, parashah) in the annual Jewish cycle of Torah reading and the fifth in the Book of Exodus.
Origin of the name Isaac: The Ecclesiastic Greek form of the Hebrew Yitzchak (he will laugh), which is derived from yitshāq (laughter).
Origin of the name Isaac: The Ecclesiastic Greek form of the Hebrew Yitzchak (he will laugh), which is derived from yitshÄq (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.