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First name origin & meaning:

Hebrew: The supplanter

First name variations: Jakob, Jacobo, Jacopo, Jacoba, Jacobson, Jacobi, Jacobine, Jacobina, Jayme, Jacques, Jascha, Jake, Jackob, Jakub, Jack, Jackson, Jeb, Cob, Cobb, Giacobo, Giacomo, Iago, Iacovo, Yago, Yaacov, Yacov, Yakov, Jaccob, Jachob, Jaco, Jacobb, Jacub, Jaecob, Jaicob, Jalu, Jecis, Jeks, Jeska, Jocek, Jock, Jocob, Jocobb, Jokubus, Jacob

Last name origin & meaning:

Spanish and Portuguese: from the personal name Jacinto, (Latin Hyacinthus, Greek Hyakinthos). This was the name of a 3rd-century saint who was martyred together with his brother Protus. He enjoyed a certain cult in Portugal. His name, which is almost certainly of pre-Greek origin, in classical times denoted a flower (not the modern hyacinth, but perhaps the martagon lily), and it was borne by a mythological character from whose blood the flower was supposed to have sprung up.