Akkadian (lišānum akkadītum) or Assyrian-Babylonian was a Semitic language (part of the greater Afro-Asiatic language family) spoken in ancient Mesopotamia. The earliest attested Semitic language, it used the cuneiform writing system derived ultimately from ancient Sumerian, an unrelated language isolate. The name of the language is derived from the city of Akkad, a major centre of Mesopotamian civilization.
Attested since the later 3rd millennium BCE and in continued use throughout the 2nd millennium BCE, its use declined from the 8th century BC or so, and it was largely extinct during the Hellenistic period.
The Akkadian Empire established by Sargon I introduced the Akkadian language (the "language of Akkad") as a written language, adapting Sumerian cuneiform orthography for the purpose. During the Middle Bronze Age Old Assyrian and Old Babylonian period, the language virtually displaced Sumerian, which is assumed to have been extinct as a living language by the 18th century BCE.
Middle Assyrian served as a lingua franca in much of the Ancient Near East of the Late Bronze Age (Amarna period). During the Neo-Assyrian Empire, Neo-Assyrian began to turn into a chancellery language, being marginalized by Old Aramaic. Under the Achaemenids, Aramaic continued to prosper, but Assyrian continued its decline, with a brief revival under the Chaldean Empire. The language's final demise came about during the Hellenistic period when it was further marginalized by Koine Greek, although Neo-Assyrian cuneiform remained in use in literary tradition well into Parthian times. The latest known text in cuneiform Babylonian is an astronomical text dated to CE 75. After this, the language and its literary tradition was forgotten until the decipherment of cuneiform in the 1850s.
As far as can be told from the cuneiform orthography of Akkadian, several Proto-Semitic phonemes are lost in Akkadian. The Proto-Semitic glottal stop , are lost as consonants, either by sound change or orthographically, but they gave rise to the vowel quality e not exhibited in Proto-Semitic. The interdental and the voiceless lateral fricatives merged with the sibilants as in Canaanite, leaving 19 consonantal phonemes:
| Bilabial | Dental | Palatal | Velar | Uvular | |||
|---|---|---|---|---|---|---|---|
| plain | emphatic | plain | emphatic | ||||
| Nasal | m | n | |||||
| Plosive | p b | t d | tˁ <ṭ> | k ɡ | kˁ | ||
| Fricative | v | s z | sˁ <ṣ> | ʃ <š> | χ <ḫ> | ||
| Rhotic | r | ||||||
| Approximant | l | j | |||||
The nature of *š as postalveolar and of *z *s *ṣ as fricatives is not uncontroversial, due to attested assimilations of voiceless coronal affricates to *s. An alternative approach to the phonology of these consonants is to treat *s *ṣ as voiceless coronal affricates , *š as a voiceless coronal fricative [s] and *z as a voiced coronal affricate or fricative [d͡z~z]. In this vein, an alternative transcription of *š is *s̠, with the macron below indicating a soft (fricative) articulation in Semitic transcription.
There are four vowel qualities, with distinctive vowel length:
Akkadian is an inflected language, and as a Semitic language its grammatical features are highly similar to those found in Classical Arabic. It possesses two genders (masculine and feminine), distinguished in second person pronouns (you-masc., you-fem.) and in verb conjugations; three cases for nouns and adjectives (nominative, accusative, and genitive); three numbers: (singular, dual, and plural); and unique verb conjugations for each first, second, and third person pronoun.
Akkadian nouns are declined according to gender, number and case. There are three genders; masculine, feminine and common. Only a very few nouns belong to the common gender. There are also three cases (nominative, accusative and genitive) and three numbers (singular, dual and plural). Adjectives are declined exactly like nouns.
Akkadian verbs have thirteen separate root stems. The three basic modifications of the simple stem (numbered I, or called the Grundstamm, G-Stamm) are doubling of the second root-letter (II or Doppelungsstamm, D-Stamm), š-prefix (III or Š-Stamm) or n-prefix (IV or N-Stamm). A second series is created by infixing the syllable ta between the first two root letters, creating a generally reflexive set of stems. These two sets of four stems each are the most commonly used in Akkadian. A third set is created by the infixation of the syllable tan between the first two root letters. The final stem uses both the š-prefix and doubling of the second root letter. The stems, their nomenclature and examples of the third-person masculine singular permansive of the verb parāsum (root PRS: 'to decide, distinguish, separate') is shown below:
| I.1 | G | paris | the simple stem, used for transitive and intransitive verbs | corresponding to Arabic stem I (fa‘ala) and Hebrew qal |
| II.1 | D | purrus | gemination of the second radical, indicating the intensive | corresponding to Arabic stem II (fa‘‘ala) and Hebrew pi‘el |
| III.1 | Š | šuprus | š-preformative, indicating the causative | corresponding to Arabic stem IV (’af‘ala) and Hebrew hiph‘il |
| IV.1 | N | naprus | n-preformative, indicating the reflexive/passive | corresponding to Arabic stem VII (infa‘ala) and Hebrew niph‘al |
| I.2 | Gt | pitrus | simple stem with t-infix after first radical, indicating reciprocal or reflexive | corresponding to Arabic stem VIII (ifta‘ala) and Aramaic ’ithpe‘al (tG) |
| II.2 | Dt | putarrus | doubled second radical preceded by infixed t, indicating intensive reflexive | corresponding to Arabic stem V (tafa‘‘ala) and Hebrew hithpa‘el (tD) |
| III.2 | Št | šutaprus | š-preformative with t-infix, indicating reflexive causative | corresponding to Arabic stem X (istaf‘ala) and Aramaic ’ittaph‘al (tC) |
| IV.2 | Nt | itaprus | ||
| I.3 | Gtn | pitarrus | simple stem with tan-infix after first radical | |
| II.3 | Dtn | putarrus | doubled second radical preceded by tan-infix | |
| III.3 | Štn | š-preformative with tan-infix | ||
| IV.3 | Ntn | itaprus | n-preformative with tan-infix |
Akkadian verbs usually display the tri-consonantal root, though some roots with two- or four-consonant roots also exist. There are three tenses: present, preterite and permansive. Present tense indicates incomplete action and preterite tense indicates complete action, while permansive tense expresses a state or condition and usually takes a particle.
Akkadian, unlike Arabic, has mainly regular plurals (i.e. no broken plurals), although some masculine words take feminine plurals. In that respect, it is similar to Hebrew and Maltese.