The name Martuthunira, pronounced by native speakers, means "those who live around the Fortescue River". It has many spelling variants, including: Maratunia, Mardadhunira, Mardathon, Mardathoni, Mardathoonera, Mardatuna, Mardatunera, Mardudhoonera, Mardudhunera, Mardudhunira, Mardudjungara, Marduduna, Mardudunera, Marduthunira, Mardutunera, Mardutunira, Marduyunira, Martuthinya, and Martuyhunira.
Classification
Martuthunira is classified as a member of the Ngayarta branch of the Pama–Nyungan languages. Under Carl Georg von Brandenstein's 1967 classification, Martuthunira was classed as a Coastal Ngayarda language, but the separation of the Ngayarda languages into Coastal and Inland groups is no longer considered valid.
Phonology
Martuthunira has a fairly standard Australian phonology. R. M. W. Dixon uses it as a prototypical example in his 2002 book Australian Languages: Their nature and development.
Consonants
The laterals—but perhaps uniquely not the nasals—are allophonically prestopped. The laminal stop has a voiced allophone between vowels. Between vowels, the dental stop can become,,,,,, or even simply a syllable break. In some words one particular realization is always used, in others there is free variation. The alveolar stop has a voiced allophone after a nasal. It occurs between vowels only in a handful of words, probably all loanwords, where it has a longer period of closure than the other stops. The retroflex stop has a voiced allophone after a nasal, and a flapped allophone between vowels. Besides the voiced allophones mentioned above, stops are usually voiceless and unaspirated. The laterals have prestopped allophones when they occur in a syllable coda. The alveolar rhotic is a tap between vowels, and a usually voiceless trill finally. The palatal semivowel may be dropped initially before, but the equivalent dropping of before initial is rare.
Vowels
is usually realized as, though it may be realized as near palatal consonants and as near, or. is realized as in morpheme-initial syllables, elsewhere. is usually realized as in stressed syllables, and in unstressed syllables. is fronted to varying degrees when near laminal consonants, being most fronted when preceded by a dental consonant. It has an unrounded allophone when followed by. is usually, but is lowered to when preceded by a dental consonant. is usually when stressed, when unstressed. Following a laminal consonant, more so after dentals than palatals, it is fronted towards. When preceded by and followed by a velar consonant, it is realized as. is usually simply.
Phonotactics
All Martuthunira words begin with one of the following consonants, from most to least frequent:. This consists of only peripheral and laminal stops, nasals, and semivowels. Words may end in a vowel, or one of.
Mirtily gets a proprietive suffix, which indicates that it is possessed by the euro. However, because it modifies tharnta, it additionally gets an accusative suffix to agree with it.
Thara gets a locative suffix, which indicates that it is what the joey is in. It also gets a proprietive suffix to agree with mirtily, and then an accusative suffix to agree with tharnta.