diff --git a/src/numeral_systems.rs b/src/numeral_systems.rs
index 39ce4ac..2590a88 100644
--- a/src/numeral_systems.rs
+++ b/src/numeral_systems.rs
@@ -408,6 +408,33 @@ declare_named! {
/// > ٨, ٩,
/// > ١٠, ١١
EasternArabic = "arabic.eastern" ("١"),
+
+ /// Abjad order
+ /// [Arabic letters](https://en.wikipedia.org/wiki/Abjad).
+ ///
+ /// ## Representable Numbers
+ ///
+ /// All non-negative integers can be represented.
+ ///
+ /// ## Example
+ ///
+ /// The first twenty-eight positive integers are represented as follows:
+ ///
+ /// > أ, ب,
+ /// > ج, د,
+ /// > ه, و,
+ /// > ز, ح,
+ /// > ط, ي,
+ /// > ك, ل
+ /// > م, ن
+ /// > س, ع
+ /// > ف, ص
+ /// > ق, ر
+ /// > ش, ت
+ /// > ث, خ
+ /// > ذ, ض
+ /// > ظ, غ
+ ArabicAbjad = "arabic.abjad" ("أ"),
/// Decimal positional notation using the Persian variant of
/// [Eastern Arabic numerals](https://en.wikipedia.org/wiki/Eastern_Arabic_numerals#Numerals).
@@ -821,6 +848,11 @@ impl NamedNumeralSystem {
Self::EasternArabic => NumeralSystem::Positional(&[
'٠', '١', '٢', '٣', '٤', '٥', '٦', '٧', '٨', '٩',
]),
+
+ Self::ArabicAbjad => NumeralSystem::Positional(&[
+ 'أ', 'ب', 'ج', 'د', 'ه', 'و', 'ز', 'ح', 'ط', 'ي', 'ك', 'ل', 'م', 'ن',
+ 'س', 'ع', 'ف', 'ص', 'ق', 'ر', 'ش', 'ت', 'ث', 'خ', 'ذ', 'ض', 'ظ', 'غ',
+ ]),
Self::Persian => NumeralSystem::Positional(&[
'۰', '۱', '۲', '۳', '۴', '۵', '۶', '۷', '۸', '۹',
@@ -1435,6 +1467,7 @@ mod tests {
NamedNumeralSystem::KoreanJamo => 65477685939649764827530478995838083425, // 21
NamedNumeralSystem::KoreanSyllable => 24217153056183571894327643661698510954,
NamedNumeralSystem::EasternArabic => 277754701051910363703826860323053920831,
+ NamedNumeralSystem::ArabicAbjad => 332217778941065507236060222268877272547,
NamedNumeralSystem::Persian => 6232158096065129450489636457808686806,
NamedNumeralSystem::Devanagari => 327133969362282954753636774557232534052,
NamedNumeralSystem::Tibetan => 87580519645280744681237273097105390953,