The Tunica or (or Tonica, or less common form Yuron) language is a language isolate that was spoken in the Central and Lower Mississippi Valley in the United States by Native American Tunica peoples. There are no native speakers of the Tunica language, but there were 32 second-language speakers in 2017, and , there are 60 second-language speakers.

Tunica-Biloxi tribal member William Ely Johnson worked with Swiss ethnologist Albert Gatschet to help him document the language in 1886. This initial documentation was further developed by linguist John R. Swanton in the early 1900s.

The last known native speaker, Sesostrie Youchigant, died in 1948. In the 1930s, linguist Mary Haas worked with him to describe what Youchigant remembered of the language, and the description was published in A Grammar of the Tunica Language in 1941. That was followed by Tunica Texts in 1950 and Tunica Dictionary in 1953.

By the 17th century, the people had suffered a high rate of fatalities from Eurasian infectious diseases, warfare, and social disruption. The reduced Tunica tribe lived close to the Ofo and Avoyelles tribes, in present-day Louisiana. They communicated by Mobilian Jargon or French. The small population and the use of a jargon made Haas note that the eventual deterioration of the Tunica language was inevitable..

Classification Although Tunica is usually classified as a language isolate, Granberry (1994) suggested that Tunica was related to Calusa (Calusa–Tunica family), with Calusa possibly being relatively a recent arrival from the lower Mississippi region. Another possibility was that similarities between the languages were derived from long-term mutual contact. It can also be related to Gulf languges.Haas, Mary. (1951). The Proto-Gulf word for water (with notes on Siouan-Yuchi). International Journal of American Linguistics 17: 71-9.

Language revitalization efforts In 2010, the Tunica-Biloxi tribe formed the Tunica Language Project in partnership with the Linguistics Program at Tulane University in a continuing effort to revitalize the Tunica language. Tribal members read from a new children's book in Tunica at a 2010 pow wow. Only about half of the tribal members live within of the reservation, in Avoyelles Parish. The Tunica-Biloxi Language & Culture Revitalization Program uses webinars to teach the language to those who do not live near the reservation.

Phonology The phonology of Tunica is as follows.

Vowels Tunica has seven vowels, all of which are usually short but may be lengthened in stressed syllables, and all of which are voiced completely, except if a /u/ is at the end of a phrase in a word with stress on the second-last syllable, when it is unvoiced after a /k/ or /hk/. Vowels are paired with a certain melody in last or occasionally second-last syllable of a word. The melodies are high, low, rising, falling, and falling-rising.

FrontCentral Back Close Close-mid Open-mid Open

Vowels may appear only following or preceding consonants, never adjacent to one another. Also, /i/, /a/, and /u/ may appear in any position, but the others appear only in syllables with stress. Vowels do not typically occur at the end of a phrase, and when any vowel precedes n in the same syllable, it becomes nasalized.

Consonants The transcription style (represented in bolded symbols below) is based on Mary Haas' work Tunica Language. The IPA symbols are in brackets next to each consonant.

Labial Alveolar Palatal Velar Glottal Plosive voiceless p t č k ʔ voiced b d g Fricative f s š h Nasal m n Trill r Approximant w l y

The consonants /p/, /t/, /k/, and /t͡ʃ/ are always fairly aspirated unless they occur before a /ʔ/, when they are completely unaspirated. Meanwhile, /b/, /d/, and /g/ do not occur frequently, as is the case with /f/. The fricatives /s/ and /š/ are pronounced with a stronger hiss than in English, and /ʔ/ is said to have a very strong closure. The semi-vowels /j/ and /w/ are always voiced, as is the nasal /m/. On the other hand, /n/, /l/, and /r/ can be voiced or voiceless. The /l/ and /r/ are voiced between vowels or before /ʔ/ or continuants. However, they are voiceless before voiceless consonants except /ʔ/ or at the end of a phrase: ši'lka "blackbird," ši'hkal "stone." Similarly, /n/ is voiced between vowels or before /ʔ/ and is voiceless at the end of a phrase or before voiceless consonants except /ʔ/.

Prosody Tunica has both stressed and unstressed syllables, and stressed syllables can have a higher pitch than other syllables, depending on the position of the syllable in a phrase. The first stressed syllable of a phrase is typically spoken with a slightly higher pitch than the following syllables are. The exception is the last syllable when the high or the falling melody is used or the last syllable during the use of the low or the rising melody. The phrase-final melody then determines much of the stress in the rest of the phrase.

When there is use of the high melody, the last syllable is about a minor third higher pitch than the second-last syllable. The first syllable with stress is usually a major second higher than the following syllables are except for the last. All other syllables may not be spoken with any kind of pitch, and the same goes for other unstressed syllables. For example, "You will kill the squirrel" shows the melody. ta'- is a major second higher than the syllables that follow it except for -ča, which is a minor third higher than any syllable that comes before it other than ta'-.

The falling melody causes the last syllable to start at a minor third higher than the second-last syllable: it goes down quickly: ʔa'hkiš ma'rʔikî "Go back!"

The low melody that occurs as the last syllable is lower than the last stressed syllable, which is a little higher than the syllables that it immediately follows. All unstressed syllables between the last stressed syllable and the last syllable take on the same stress as the latter. Unless it is also the last stressed syllable, the first stressed syllable is higher than any following syllable except that last stressed syllable: ʔu'riš ma'rʔuwa'nì "He went back home, they say."

When the rising melody occurs, the last syllable starts lower than the last stressed syllable and goes upward quickly by about a minor third. Elsewhere in the phrase, the tone is like a low melody: lɔ'ta wiwa'nǎn "Do you want to run?"

The falling-rising melody is a fast drop by a fourth, followed by a fast rise by a minor third. However, only one word uses it: hőn "Yes."

Phonological processes Every syllable in Tunica begins with a single consonant. Sometimes, double or triple consonants may occur in the middle of words or phrases, but no more than two consonants in a row occur at the end of a phrase. The smallest phonetic group in Tunica is a phrase, but a word and a phrase can be differentiated by certain processes. Those that affect grammatical elements that merge to form words are vocalic contraction, vocalic assimilation, vocalic syncope, consonantic syncope, haplology, and patterns in stress. Those that affect words that combine into phrases are vocalic apocope, consonantic apocope, amalgamation, and stress losses. More specific information and basic examples are detailed below:

/a/ assimilates after /i/ or /e/ > /ɛ/, and /a/ assimilates after /o/ or /u/ > /ɔ/: mi'lʔɛhɛ "not red" < mi'li "red" + -ʔaha "not." When the first vowel of aha or ehe contracts or assimilates with the preceding vowel, the second vowel takes on the same quality as the first: ka'šʔɛhɛ "not true" < ka'ši "true" + -ʔaha "not." In combining grammatical elements into words, a vowel preceding /ʔ/ is syncopated (lost) unless at the end of a monosyllabic stem or prefix: la'pʔɔhɔ "not good" < la'pu "good" + -ʔaha "not." /h/ between a continuant and a voiceless stop is dropped in consonantic syncope; /k/ between /h/ and a voiceless stop is dropped; /hk/ before a continuant aside from /h/ is dropped; /š/ before another/š/ makes one of them drop; the prefix ta'- becomes t- before the stems beginning with /ʔ/, and /ʔ/ is syncopated. Haplology occurs when the last syllable of the preceding noun stem takes is /k/, followed by a vowel: the last syllable drops if the second noun member starts with /k/: ha'hkiri "cornmeal" < ha'hka "corn" + ki'ri "ground." All stems have an intrinsic stress, and some affixes have intrinsic stress on the first syllable. In the combination of elements to form words and phrases, the stresses are retained if possible, but two stressed syllables do not occur consecutively, which causes the need for certain accommodations. For example, monosyllabic or syncopated disyllabic stems, followed by another element with intrinsic stress, cause the latter to lose its stress. Also, a stem, combined with a stressed monosyllabic prefix, loses its stress. Vocalic apocope occurs before another word starting with /ʔ/ if the prior word does not have a stressed second-last syllable: "the owl hooted," or, if it does, the following word does not contain a stressed first syllable: "he was a person." When a word is vocalically apocopated, with the sound lost at the end of the word, and ends in a consonant group of a continuant plus a voiceless stop, it then goes through consonantic apocope and so the word-final consonant is lost. A voiceless stop between /h/ and another voiceless stop is dropped. A voiceless stop after any continuant except /h/ is dropped. A consonant group of /h/ followed by a voiceless stop is dropped if a continuant follows. Amalgamations occur when words beginning with /h/ lose it after a word that is vocalically apocopated: "on the ground" < "the ground" + . If an irregularly-apocopated word with a stressed second-last syllable is placed before a word with stress on the first syllable, the first word loses its stress. If the second word does not have stress on the first syllable, the first word keeps the stressed syllable.

Morphology The morphology of Tunica is as follows.

Inflection Nouns can be divided into the categories of indeterminative and determinative. The indeterminative nouns have a stem without any affixes, and the determinative nouns are distinguished by the articular prefix or the pronominal prefix. Determinative nouns are definitive, non-definitive, and locative, which may be distinguished by different prefixes or suffixes.

The articular prefix is similar to the definite article in English and appears as ta'- before all stems not beginning with /ʔ/ or /t/. The prefix appears as t- before stems beginning with /ʔ/, and it is omitted by haplology before stems beginning with /t/: te'tiha'yihta "on the road"; te'ti "the road" < te'ti "road"

All proper nouns, unless their stems begin with /t/, must begin with the articular prefix. For instance, "Red River" is ta'- + "red water".

The pronominal prefixes signify possession when they are attached to a noun and preclude the need for articular prefixes with the same stem. Some stems, called inalienably-possessed noun stems, cannot be used without a pronominal prefix. They include those of kinship, body parts, and miscellaneous terms. Kinship terms are those such as -e'si "father" or -gači "mother." Body part terms are those such as -e'sini "head" or -e'neri "horns." Finally, miscellaneous terms can be nouns like -e'htiwa'hkuni "breechcloth" or -e'tisa "name."

Gender-number suffixes can be used only in the definitive case of the determinative category so whenever one is used, there must also be a determining prefix attached to the stem. Below is a table showing the gender-number suffixes: Singular Dual Plural Masculine -ku, -ku'hu ʔu'nima -sɛ'ma, -sɛm Feminine -hči, -hči'hi -si'nima, -sin