Ocuiltec language

Ocuiltec, also known as Tlahuica and Atzingo Matlatzinca, is a moribund language of Central Mexico closely related to Matlatzinca and Pirinda.^[5]

Ocuiltec
Tlahuica
pjyɇkakjó[1][2]
Native to	Mexico
Region	State of Mexico
Ethnicity	Matlatzinca (Tlahuica)
Native speakers	100 (2011)[3] 2,238 (2020)[4]
Language family	Oto-Manguean Oto-Pame Matlatzincan Ocuiltec
Language codes
ISO 639-3	ocu
Glottolog	atzi1235
ELP	Ocuiltec Ocuiltec

Matlatzinca-Atzinca-Pirinda languages. Extension at the beginning of 20th century and earlier extension in 16th century

Ocuiltec is spoken primarily in the municipality of Ocuilan in the villages Cinco Caminos, Colonia Doctor Gustavo Baz, El Capulín, El Totoc (San José Totoc), Lomas de Teocaltzingo (Loma de Tecalzingo), Ocuilán de Artéaga, San Juan Atzingo, Santa Lucía, Santa Martha, and Santa María Nativitas.^[1][4][6] It may have been spoken in the adjacent area of Morelos, though Matlatzinca could have also existed in it.^[7]

Due to the extremely small speaking population and the unfavourable age structure, Ocuiltec is highly endangered. In the 2000 census, only 26 persons under the age of 20 were registered as speakers of Ocuiltec.

Phonology

Consonants

	Bilabial	Alveolar	Palatal	Velar		Glottal
				plain	lab.
Nasal	m	n	(ɲ)	(ŋ)
Plosive	p	t		k	kʷ	ʔ
Affricate		t͡s	t͡ʃ
Fricative	β	s	ʃ			h
Rhotic		ɾ
Approximant		l	j	w

• /n/ is heard as velar [ŋ] when before velar stops.
• Sounds /m, n, (ɲ), l, j, w/ all become voiceless [m̥, n̥, (ɲ̊), l̥, j̊, w̥] when in groups with /h/.
• Stop sounds /p, t, t͡s, t͡ʃ, k, kʷ/ are voiced as [b, d, d͡z, d͡ʒ, ɡ, ɡʷ] when following nasals.
• /l/ may be heard as voiceless [l̥] in word-final or syllable-final positions.
• /w/ may be heard as a labialized fricative [ɣʷ] in intervocalic positions.
• Sounds /p, (b), m/ may also be heard as labialized [pʷ, (bʷ), mʷ] when preceding /ɨ/.
• Sounds /t, (d), l, n/ may tend to palatalize as [tʲ, (dʲ), lʲ, nʲ~ɲ] when before high vowels /i, ɨ, u/.
• Other sounds such as /f, r/, are heard from Spanish loanwords.

Vowels

	Front	Central	Back
Close	i iː	ɨ ɨː	u uː
Mid	ɛ ɛː	ə əː	ɔ ɔː
Open		a aː

• /i/ is heard as [ɪ] in closed syllables.
• Vowels may also be heard as nasalized [Ṽ] when preceding nasal consonants.^[8]