Abjad numerals are a system of assigning numerical values to letters in the Arabic alphabet. Each letter corresponds to a specific number, allowing words to be converted into numerical values. This system is often used in various cultural and historical contexts, including poetry and numerology. The term "Abjad" itself comes from the first four letters of the Arabic alphabet: أ (Alif), ب (Baa), ج (Jeem), and د (Daal). This numeral system has been utilized in Islamic culture for centuries, particularly in the context of Arabic literature and Islamic scholarship.