Abjad numerals
Template:Short description Template:Multiple issues Template:Sidebar with collapsible groups Template:Arabic alphabet The Abjad numerals, also called Hisab al-Jummal (Template:Langx, Template:Transliteration), are a decimal alphabetic numeral system/alphanumeric code, in which the 28 letters of the Arabic alphabet are assigned numerical values. They have been used in the Arabic-speaking world since before the eighth century when positional Arabic numerals were adopted.[1] In modern Arabic, the word Template:Transliteration (Script error: No such module "Lang".) means 'alphabet' in general.
In the Abjad system, the first letter of the Arabic alphabet, ʾalif, is used to represent 1; the second letter, bāʾ, 2, up to 9. Letters then represent the first nine intervals of 10s and those of the 100s: yāʾ for 10, kāf for 20, qāf for 100, ending with 1000.
The word ʾabjad (Script error: No such module "Lang".) itself derives from the first four letters (A-B-G-D) of the Semitic alphabet, including the Aramaic alphabet, Hebrew alphabet, Phoenician alphabet, and other scripts for Semitic languages. These alphabets contained only 22 letters, stopping at taw, numerically equivalent to 400. The Arabic Abjad system continues at this point with letters not found in other alphabets: thāʾ = 500, khāʾ = 600, dhāl = 700, etc. Abjad numerals in Arabic are similar to the alphanumeric codes of Hebrew gematria and Greek isopsephy.
Abjad order
The Abjad order of the Arabic alphabet has two slightly different variants. The Arabic abjad order is not a simple historical continuation of the earlier north Semitic alphabetic order, since it has a position corresponding to the Aramaic letter samekh / semkat Script error: No such module "Lang"., yet no letter of the Arabic alphabet historically derives from that letter.
In the most common Mashriqi abjad sequence, loss of Template:Transliteration was compensated for by the split of [[shin (letter)|Template:Transliteration]] Script error: No such module "Lang". into two independent Arabic letters, Script error: No such module "Lang". (Template:Transliteration) and Script error: No such module "Lang". (Template:Transliteration), which moved up to take the place of Template:Transliteration.
The Mashriqi (common) abjad sequence, read from right to left, is:
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This is commonly vocalized as follows:
Another vocalization is:
In the Maghrebian abjad sequence (quoted in apparently earliest authorities and considered olderTemplate:Sfn), loss of Template:Transliteration was compensated for by the split of [[Tsade (letter)|Template:Transliteration]] Script error: No such module "Lang". into two independent Arabic letters, Script error: No such module "Lang". (Template:Transliteration) and Script error: No such module "Lang". (Template:Transliteration), which moved up to take the place of Template:Transliteration.
The Maghrebian abjad sequence, read from right to left, is:Template:Sfn[2]Script error: No such module "Unsubst".
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which can be vocalized as:
Another vocalization is:
- Competing order
Modern dictionaries and other reference books use the newer Template:Transliteration (Script error: No such module "Lang".) / Template:Transliteration (Script error: No such module "Lang".) and more common order, which partially groups letters together by similarity of shape, and is never used as numerals.
The common Template:Transliteration sequence, read from right to left, is:
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Persian uses a slightly different order, in which و comes before ه instead of after it.
In the Maghrebian Template:Transliteration / Template:Transliteration order (replaced by the Mashriqi order[2]Script error: No such module "Unsubst".), the sequence is:Template:Sfn
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In Abu Muhammad al-Hasan al-Hamdani's encyclopædia Kitāb al-Iklīl min akhbār al-Yaman wa-ansāb Ḥimyar (Script error: No such module "Lang".), the letter sequence (from right to left) is:Template:Sfn
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Uses of the Abjad system
Before the Hindu–Arabic numeral system, the abjad as numbers were used for all mathematical purposes. In modern Arabic, they are primarily used for numbering outlines, items in lists, and points of information. Equivalent to English, "A.", "B.", and "C." (or, rarer, Roman numerals: I, II, III, IV), in Arabic, thus "Script error: No such module "Lang".", then "Script error: No such module "Lang".", then "Script error: No such module "Lang".", not the first three letters of the modern Template:Transliteration order.
The abjad numbers are also used to assign numerical values to Arabic words for purposes of numerology. The common Islamic phrase Script error: No such module "Lang". Template:Transliteration ('In the name of Allah, the most merciful, the most compassionate' – see Basmala) has a numeric value of 786 (from a letter-by-letter cumulative value of 2+60+40+1+30+30+5+1+30+200+8+40+50+1+30+200+8+10+40). The name Allāh Script error: No such module "Lang". by itself has the value 66 (1+30+30+5).
Letter values
In common abjad order:Template:Sfn
Notice that some letters appear in their initial form and others in a riqaa-like form, with the alif having a different shape.
In Maghrebian Abjad order:Template:Sfn
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For four Persian letters these values are used:
| Value | Letter | Name | Trans- literation |
Has numerical value of |
|---|---|---|---|---|
| 2 | Script error: No such module "Lang". | Template:Transliteration | Template:Transliteration | Script error: No such module "Lang". |
| 3 | Script error: No such module "Lang". | Template:Transliteration | Template:Transliteration or Template:Transliteration | Script error: No such module "Lang". |
| 7 | Script error: No such module "Lang". | Template:Transliteration | Template:Transliteration or Template:Transliteration | Script error: No such module "Lang". |
| 20 | Script error: No such module "Lang". | Template:Transliteration | Template:Transliteration | Script error: No such module "Lang". |
Similar systems
The Abjad numerals are equivalent to the earlier Hebrew numerals up to 400. The Hebrew numeral system is known as Gematria and is used in Kabbalistic texts and numerology. Like the Abjad order, it is used in modern times for numbering outlines and points of information, including the first six days of the week. The Greek numerals differ in a number of ways from the Abjad ones (for instance in the Greek alphabet there is no equivalent for Script error: No such module "Lang"., Template:Transliteration). The Greek language system of letters-as-numbers is called isopsephy. In modern times the old 27-letter alphabet of this system also continues to be used for numbering lists.
See also
- Eastern Arabic numerals
- Western Arabic numerals
- Kufic
- Hurufism
- 'Ilm al-Huruf (science of letters)
- Gematria
- Isopsephy
- Katapayadi system
References
Sources
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