A Jew that converts to another religion.
An Apostate Jew
An apostate.
What is this question all about?
Somebody who isn't Jewish is a "goy" in Yiddish.
A Jew is someone born to a Jewish mother or who has converted to Judaism; Jewish tradition does not recognize "half Jewish" or "partly Jewish" as a status. You either are or you are not. A Jew who abandons Judaism and adopts another religion is an apostate. It is important to understand, though, that to be Jewish is to be accepted as a Jew by the Jewish community. It is not just between you and God. So, conversion to Judaism involves coming learning enough to come before a rabbinical court and be accepted as a Jew. There are also ritual requirements such as circumcision and dunking in a mikvah. For an apostate to return to Judaism, mere private renunciation of the other religion is not enough, it is also necessary to patch up differences with the Jewish community.
* A person who renounces his former religious beliefs is an apostate. * In most cases, ..."smart"!
Julian the Apostate was born in 331 or 332.
By whom? They do not consider themselves to be apostate, certainly not as a whole. So your question needs to tell us who is considering them to be apostate.
I suppose you call them either a Jew or a Muslim since Judaism and Islam are separate religions and you cannot be both. There is also no specific term for a Jew who converted to Islam or a Muslim who converted to Judaism in either religion. (Apostate is general term for abandoning your faith.)
The Apostate - 2014 is rated/received certificates of: UK:15
According to Judaism, a Jew's nature as a Jew is part of his make-up and does not "wax and wane" with his belief. The nature of being part of the Jewish Nation - Jewish Identity, is not contingent on faith. (To a religious Jew, the question is as absurd as asking "How can an Italian who does not have faith in Catholicism resume his Italian-ness?") It is for this reason that Judaism does not recognize de-conversion or apostasy. If a Jewish person who has been atheist or the adherent of a different faith wishes to rediscover their Judaism, there are numerous organizations that can assist with that and are sponsored by the different Jewish movements.
An apostate is a person who has renounced a religion or faith, or a person who, having received sacred orders, renounces his clerical profession.