Idiom derived from Hebrew, e.g

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
1848, "characteristic attributes of Semitic languages;" 1851, "characteristic attributes of Semitic people," from Semite + -ism . From 1870 as "Jewish influence in a society."

Wikipedia Word definitions in Wikipedia
In paleolinguistics a Semitism is a grammatical or syntactical behaviour in a language which reveals that the influence of a Semitic language is present. The most common example is the influence of Aramaic on some texts written in Jewish Koine Greek .

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Semitism \Sem"i*tism\, n. A Semitic idiom; a word of Semitic origin. [Written also Shemitism .]