Semitic languages
The similarity of the Hebrew, Arabic and Aramaic languages was accepted by Jewish and Islamic scholars since medieval times. The languages were familiar to Western European scholars due to historical contact with neighbouring Near Eastern countries and through Biblical studies, and a comparative analysis of Hebrew, Arabic, and Aramaic was published in Latin in 1538 by Guillaume Postel. Almost two centuries later, Hiob Ludolf described the similarities between these three languages and the Ethiopian Semitic languages. However, neither scholar named this grouping as "Semitic".
Palestinian Arabic
The noticeable differences between southern and northern forms of Levantine Arabic, such as Syrian Arabic and Lebanese Arabic, are stronger in non-urban dialects. The main differences between Palestinian and northern Levantine Arabic are as follows:There are also typical Palestinian words that are shibboleths in the Levant.