|Ethnicity||Yidinji, Gungganyji, Wanjuru, Madjandji|
|19 (2016 census)|
Yidiny (green, with arrow) among other Pama–Nyungan languages (tan)
Yidiny has the typical Australian vowel system of /a, i, u/. Yidiny also displays contrastive vowel length.
It is not clear if the two rhotics are trill and flap, or tap and approximate. Dixon (1977) gives them as a "trilled apical rhotic" and a "retroflex continuant."
The Yidiny language has a number of particles that change the meaning of an entire clause. These, unlike other forms in the language, such as nouns, verbs and gender markers, have no grammatical case and take no tense inflections. The particles in the Yidiny language: nguju - 'not' (nguju also functions as the negative interjection 'no'), giyi - 'don't', biri - 'done again', yurrga - 'still', mugu - 'couldn't help it' (mugu refers to something unsatisfactory but that is impossible to avoid doing), jaymbi / jaybar - 'in turn'. E.g. 'I hit him and he jaymbi hit me', 'He hit me and I jaybar hit him'. Dixon states that "pronouns inflect in a nominative-accusative paradigm… deictics with human reference have separate cases for transitive subject, transitive object, and intransitive subject… whereas nouns show an absolutive–ergative pattern." Thus three morphosyntactic alignments seem to occur: ergative–absolutive, nominative–accusative, and tripartite.
Pronouns and deictics
Pronoun and other pronoun-like words are classified as two separate lexical categories. This is for morphosyntactic reasons: pronouns show nominative-accusative case marking, while demonstratives, deictics, and other nominals show absolutive-ergative marking.
In common with several other Australian Aboriginal languages, Yidiny is an agglutinative ergative-absolutive language. There are many affixes which indicate a number of different grammatical concepts, such as the agent of an action (shown by -nggu), the ablative case (shown by -mu or -m), the past tense (shown by -nyu) and the present and future tenses (both represented with the affix -ng).
There are also two affixes which lengthen the last vowel of the verbal root to which they are added, -Vli- and -Vlda (the capital letter 'V' indicates the lengthened final vowel of the verbal root). For example: magi- 'climb up' + ili + -nyu 'past tense affix' (giving magiilinyu), magi- 'climb up' + ilda + -nyu 'past tense affix' (giving magiildanyu). The affix -Vli- means 'do while going' and the affix -Vlda- means 'do while coming'. It is for this reason that they cannot be added to the verbs gali- 'go' or gada- 'come'. Therefore, the word magiilinyu means 'went up, climbing' and magiildanyu means 'came up, climbing'.
One morpheme, -ŋa, is an applicative in some verbs and a causative in others. For example, maŋga- 'laugh' becomes applicative maŋga-ŋa- 'laugh at' while warrŋgi- 'turn around' becomes causative warrŋgi-ŋa- 'turn something around'. The classes of verbs are not mutually exclusive however, so some words could have both meanings (bila- 'go in' becomes bila-ŋa- which translates either to applicative 'go in with' or causative 'put in'), which are disambiguated only through context.
Affixes and number of syllables
There is a general preference in Yidiny that as many words as possible should have an even number of syllables. It is for this reason that the affixes differ according to the word to which they are added. For example: the past tense affix is -nyu when the verbal root has three syllables, producing a word that has four syllables: majinda- 'walk up' becomes majindanyu in the past tense, whereas with a disyllabic root the final vowel is lengthened and -Vny is added: gali- 'go' becomes galiiny in the past tense, thus producing a word that has two syllables. The same principle applies when forming the genitive: waguja- + -ni = wagujani 'man's' (four syllables), bunya- + -Vn- = bunyaan 'woman's'. The preference for an even number of syllables is retained in the affix that shows a relative clause: -nyunda is used with a verb that has two or four syllables (gali- (two syllables) 'go' + nyunda = galinyunda), giving a word that has four syllables whereas a word that has three or five syllables takes -nyuun (majinda- (three syllables) 'walk up' + nyuun = majindanyuun), giving a word that has four syllables.
- "Census 2016, Language spoken at home by Sex (SA2+)". stat.data.abs.gov.au. Australian Bureau of Statistics. Retrieved 2017-10-29.
- Dixon, R. M. W. (2002). Australian Languages: Their Nature and Development. Cambridge University Press. p. xxxiii.
- Hammarström, Harald; Forkel, Robert; Haspelmath, Martin, eds. (2017). "Yidiñ". Glottolog 3.0. Jena, Germany: Max Planck Institute for the Science of Human History.
- Yidiny at the Australian Indigenous Languages Database, Australian Institute of Aboriginal and Torres Strait Islander Studies
- Bowern, Claire. 2011. "How Many Languages Were Spoken in Australia?", Anggarrgoon: Australian languages on the web, December 23, 2011 (corrected February 6, 2012)
- "A Grammar of Yidiɲ", by R. M. W. Dixon, 1977, Cambridge: Cambridge University Press. P. 32
- "A Grammar of Yidiɲ", by R. M. W. Dixon, 1977, Cambridge: Cambridge University Press.
- Dixon, R.M.W. 1977. A Grammar of Yidiny. Cambridge: Cambridge University Press. Cited in Bhat, D.N.S. 2004. Pronouns. Oxford: Oxford University Press. p. 4–5
- Dixon, R.M.W. (2000). "A Typology of Causatives: Form, Syntax, and Meaning". In Dixon, R.M.W. & Aikhenvald, Alexendra Y. Changing Valency: Case Studies in Transitivity. Cambridge University Press. pp. 31–32.
- R.M.W. Dixon, Searching for Aboriginal Languages, pages 247-251, University of Chicago Press, 1989
- R. M. W. Dixon. (1977). A Grammar of Yidiny. Cambridge: Cambridge University Press.
- R. M. W. Dixon. (1984, 1989). Searching for Aboriginal Languages. University of Chicago Press.