Guttural R
Many Jewish immigrants to Israel spoke a variety of Arabic in their countries of origin and pronounced the Hebrew rhotic as an alveolar tap , similar to Arabic '. Gradually, many of them began pronouncing their Hebrew rhotic as a voiced uvular fricative , a sound similar or (depending on the Arabic dialect) identical to Arabic '. However, in modern Sephardic and Mizrahi poetry and folk music an alveolar rhotic continues to be used.
Samaritan Hebrew
The phonology of Samaritan Hebrew is very similar to that of Samaritan Arabic, and is used by the Samaritans in prayer. Today, the spoken vernacular among Samaritans is evenly split between Modern Israeli Hebrew and Palestinian Arabic, depending on whether they reside in Holon (Israel) or in Shechem (i.e. Nablus, in Palestine’s Area A).