Mailu, orMagi (Magɨ), is aPapuan language ofPapua New Guinea.

Magi is a non-Austronesian language spoken by upwards of 6000 people living on the islands ofMailu, Laluoru, Loupomu and Eunuoro and along the south coast between Cape Rodney and mid-Orangerie Bay of the Central Province of Papua New Guinea. It is often referred to as 'Mailu' as one of the major villages speaking this language is the village of that name on Mailu Island. It is related to the other languages of the Mailuan family (Ma, Laua, Morawa, Neme'a, Domu and Bauwaki whose speakers live or lived inland of this area). Ma and Laua are now extinct.

Magi speakers have for a long time had close contacts and (probably extensive) integration with Austronesian speakers, with the result that there has been a significant adoption of Austronesian vocabulary (around 30–40%, particularlyMagori, Gadaisu, Suau, Ouma, Yoba and Bina, of which the last three are now extinct).

In turn,Magori (as well asYoba,Bina, andOuma) has received significant influence from Magi.^[2]

Magi itself is divided into two main groups of dialects: the eastern (Maisi/Varo) dialects, and the western (Island) dialects.

• /t/ is used interchangeably with a fricative [s], and was also with an affricate [ts] among older speakers.
• /l, w/ are used interchangeably with sounds [ɾ, v].

• Magori language, a nearby mixed Austronesian-Papuan language

• Saville, W. J. V. (Jul–Dec 1912). "A Grammar of the Mailu Language, Papua".Journal of the Royal Anthropological Institute.42:397–436.doi:10.2307/2843195.hdl:2027/uc1.c3206338.JSTOR 2843195.
• Thomson, N P, 1975, "Magi Phonology and Grammar: Fifty Years Afterwards", in T E Dutton, Ed., "Studies in Languages of Central and South-East Papua,ISBN 0-85883-119-8, Pub. by The Australian National University, Pacific Linguistics, Series C, No 29.
• Thomson, N P, 1975, "The Dialects of Magi", in "Papers in New Guinea Linguistics No 18",ISBN 0-85883-118-X, Pub. by The Australian National University, Pacific Linguistics, Series A No 40.

• Mailu Swadesh List by The Rosetta Project at the Internet Archive

• Languages of Central Province (Papua New Guinea)
• Mailuan languages

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