The definition of a Jew is a person who belongs to a religion called Judaism and who generally traces his or her ancestry back to the ancient Hebrew people of Israel.(noun)
Adam Sandler is an example of a Jew.
See jew in Webster's New World College Dictionary
Origin: < Jew, by assoc. with occupation of Jews as moneylenders in Middle Ages
Origin: ME < OFr Giu, Juiu < L Judaeus < Gr Ioudaios < Heb yehūdī, member of the tribe or kingdom of Judah: see Judah
See jew in American Heritage Dictionary 4
transitive verb jewed, jew·ing, jews
Origin: From Jews' supposedly extortionate practices as moneylenders in the Middle Ages.
Origin: Middle English Jeu
Origin: , from Old French giu
Origin: , from Latin Iūdaeus
Origin: , from Greek Ioudaios
Origin: , from Aramaic yəhudāy
Origin: , from Hebrew yəhûdî, inhabitant of Judah
Origin: , from yəhûdâ, Judah; see Judah2. Usage Note: It is widely recognized that the attributive use of the noun Jew, in phrases such as Jew lawyer or Jew ethics, is both vulgar and highly offensive. In such contexts Jewish is the only acceptable possibility. Some people, however, have become so wary of this construction that they have extended the stigma to any use of Jew as a noun, a practice that carries risks of its own. In a sentence such as There are now several Jews on the council, which is unobjectionable, the substitution of a circumlocution like Jewish people or persons of Jewish background may in itself cause offense for seeming to imply that Jew has a negative connotation when used as a noun.
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