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Abjad








An abjad is a type of writing system in which each symbol always or usually[http://omniglot.com/writing/alphabetic.htm Omniglot: ''Abjads / Consonant alphabets'']: "Abjads, or consonant alphabets, represent consonants only, or consonants plus some vowels. Full vowel indication (vocalisation) can be added, usually by means of diacritics, but this is not usually done." Accessed 22 May 2009. stands for a consonant; the reader must supply the appropriate vowel.
It is a term suggested by Peter T. Daniels to replace the common terms consonantary or consonantal alphabet or syllabary to refer to the family of scripts called West Semitic. In popular usage, abjads often contain the word "alphabet" in their names, such as "Phoenician alphabet" and "Arabic alphabet".

Terminology


According to the formulations of Daniels, abjads differ from alphabets in that only consonants, not vowels, are represented among the basic graphemes. Abjads differ from abugidas, another category invented by Daniels, in that in abjads the vowel sound is ''implied'' by phonology, and where vowel marks exist for the system, such as nikkud for Hebrew and harakāt for Arabic, their use is optional and not the dominant (or literate) form. In an abugida, the vowels (other than the "inherent" vowel) are always marked, either with a diacritic, a minor attachment to the letter or a standalone glyph. Some abugidas use a special symbol to ''suppress'' the inherent vowel so that the consonant alone can be properly represented. In a syllabary, a grapheme denotes a complete syllable, that is, either a lone vowel sound or a combination of a vowel sound with one or more consonant sounds.

Florian Coulmas, a critic of Daniels and the abjad terminology, argues that this terminology can confuse alphabets with "transcription systems", and that there is no reason to relegate the Hebrew, Aramaic or Phoenician alphabets to second class status as an "incomplete alphabet".
However, Daniels's terminology has found acceptance in the linguistic community.




The system takes its name from the Arabic word for alphabet, which is derived from the first four letters of the Arabic alphabet in the older abjadi order, just as the English word "alphabet" is made up of the names of the first two letters of the Greek alphabet (alpha and beta).

Origins





All known abjads belong to the Semitic family of scripts. These scripts are thought to derive from the Proto-Sinaitic alphabet (dated to about 1500 BC) which is thought to derive from Egyptian hieroglyphs. The abjad was significantly simpler than the earlier hieroglyphs. The number of distinct glyphs was reduced tremendously, at the cost of increased ambiguity.

The first abjad to gain widespread usage was the Phoenician abjad. Unlike other contemporary scripts, such as Cuneiform and Egyptian hieroglyphs, the Phoenician script consisted of only about two dozen symbols. This made the script easy to learn, and Phoenician seafaring merchants took the script wherever they went. Phoenician gave way to a number of new writing systems, including the Greek alphabet, the first "true" alphabet, and Aramaic, a widely used abjad. Greek evolved into the modern western alphabets, such as Latin and Cyrillic, while Aramaic became the ancestor of many modern abjads and abugidas of Asia.

Aramaic spread across Asia, reaching as far as India and becoming Brahmi, the ancestral abugida to most modern Indian and Southeast Asian scripts. In the Middle East, Aramaic gave rise to the Hebrew and Nabataean abjads, which retained many of the Aramaic letter forms. The Syriac script was a cursive variation of Aramaic. It is unclear whether the Arabic abjad was derived from Nabatean or Syriac.

Connections with numbers


Modern abjads have also been used for isopsephy, a system of assigning numeric values to individual letters. Before the development of the positional number system, this was one of the regular systems for writing numbers. In some languages, the relationship between words and numbers created by this system has led to poetic and mystical usages, such as the Kaballah being a poetical and numerical deviation from the Hebrew Bible.

Impure abjads



"Impure" abjads have characters for some vowels, optional vowel diacritics, or both. The term "pure" abjad refers to scripts entirely lacking in vowel indicators. However, most modern abjads, such as Arabic, Modern Hebrew, Aramaic and Avestan, are "impure" abjads, that is, they also contain symbols for some of the vowel phonemes. An example of a pure abjad is ancient Phoenician. Urdu and Persian are written in a form of the same script as Arabic, but almost always without the optional vowel diacritics.

By this criterion, at least one "mode" of the Tengwar used to write the invented languages Sindarin and Quenya in The Lord of the Rings is an impure abjad. The example on the title page (which transliterates English) is heavy with vowel diacritics, but Appendix E indicates that these are optional.

Addition of vowels




In the 9th century BC, the Greeks adapted the Phoenician script for use in their own language. The phonetic structure of the Greek language created too many ambiguities when the vowels went unrepresented, so the script was modified. They did not need letters for the guttural sounds represented by aleph, he, heth or ayin, so these symbols were assigned vocalic values. The letters waw and yod were also used. The Greek alphabet thus became the world's first "true" alphabet.

Abugidas developed along a slightly different route. The basic consonantal symbol was considered to have an inherent "a" vowel sound. Hooks or short lines attached to various parts of the basic letter modify the vowel. In this way, the South Arabian alphabet evolved into the Ge'ez alphabet between the 5th century BC and the 5th century AD. Similarly, around the 3rd century BC, the Brāhmī script developed from the Aramaic abjad.

Abjads and the structure of Semitic languages


The abjad form of writing is well-adapted to the morphological structure of the Semitic languages it was developed to write. This is because words in Semitic languages are formed from a root consisting of (usually) three consonants, the vowels being used to indicate inflectional or derived forms. For instance, from the Arabic root ذبح ''Ḏ-B-Ḥ'' (to sacrifice) can be derived the forms ذَبَح ''ḏabaḥa'' (he sacrificed), ذَبَحْتَ ''ḏabaḥta'' (you (masculine singular) sacrificed), ذَبَّحَ''ḏabbaḥa'' (he slaughtered), يُذَبَّح ''yuḏabbiḥ'' (he slaughters), and مَذْبَح ''maḏbaḥ'' (slaughterhouse). In each case, the absence of full glyphs for vowels makes the common root clearer, meaning that readers with knowledge of one word of the same root would have an easier time picking up on the similarity of meaning.

Application to non-Semitic languages


Many non-Semitic languages such as English could, theoretically, be written without vowels. It would be more difficult to read, but many words could be interpreted in context. This fact can be used to semi-bowdlerise offensive language, a practice known as disemvoweling. Many European languages, however, would lose grammatical information such as gender, case, and/or number. However, in English text the few inflections contain distinct consonants. It can be written without vowels and might still be clear, as in the first sentence in this of this paragraph: "Mny nn-Smtc lnggs sch s Nglsh, cld, thrtclly, b wrttn wtht vwls." This is a relatively poor example, but it can be understood with effort.

In general, non-Semitic texts are often puzzling and ambiguous without their vowels, more so if the context and subject are unknown, because the consonant sequences for many word roots are not unique. For example, in English, "abate", "abet", "about", "abut", "bat", "bait", "bet", "beat", "beet", "bit", "bite", "bot", "boat", "boot", "bout","but", and "byte" all reduce to "bt". Nevertheless, Indo-European languages can be written adequately using the ''impure'' abjads of Arabic and Hebrew, as with Farsi and Yiddish orthography.

Notes





Source: Wikipedia