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".
Tsvi Misinai
For those who maintained a Samaritan identity and religious association into modern times, they too, like their Palestinian counterparts who had additionally adopted Christianity and later Islam, were nevertheless thoroughly Arabized in language and culture. After the establishment of modern Israel, Samaritans living in what became the State of Israel replaced Palestinian Arabic with modern Hebrew as their day to day language (although Samaritan Hebrew had always been maintained as the liturgical language, along with liturgical Samaritan Aramaic and liturgical Samaritan Arabic).