The Belarusian Arabic alphabet (Belarusian: Беларускі арабскі алфавіт, romanized: Biełaruski arabski ałfavit) or Belarusian Arabitsa (بَلاروُسقایا ارابیࢯا, Беларуская Арабіца, Biełaruskaja Arabica)[1] was based on the Perso-Arabic script and was developed in the 16th century (possibly 15th). It consisted of twenty-eight graphemes, including several additions to represent Belarusian phonemes not found in the Arabic language.
The Belarusian Arabic alphabet was used by the Lipka Tatars, who had been invited to settle in the eastern territories of the Grand Duchy of Lithuania—a region that now comprises modern-day Belarus. During the 14th–16th centuries they gradually stopped using their own language and started using the Ruthenian language (modern Belarusian and Ukrainian) rendered in the Belarusian Arabic alphabet. Books of that literary tradition are known in Belarusian as Kitab (Belarusian: "Кітаб"), which is Arabic for written material.
Some Polish texts were also written in the Arabic script in the 17th century or later.[2]