Ati (Inati) is a language of the island of Panay in the Philippines. The variety spoken in northern Panay is also called Sogodnin (Pennoyer 1987). The Ati people also speak Kinaray-a and Hiligaynon.
Pennoyer (1987) and Reid (2013) consider Inati to be an isolate with the Philippine languages. It differs markedly from the Visayan languages and has many features not found in the Central Philippine languages.
Inati shows some unique sound changes.
Proto-Malayo-Polynesian *R > Inati /d/, such as PMP *liʔəR > Inati /liʔad/
Proto-Malayo-Polynesian *ə > Inati /a/ (as in the Central Luzon languages), not PMP *ə > /u/ or /ə/, as in the Visayan languages
Lobel (2013:75) lists the following Ati communities in the Philippines, with populations given in parentheses.
Iloilo (1,902): Anilao (341), Barotac Viejo (867), Cabatuan (31), Calinog (163), Dueñas (43), Dumangas (50), Janiuay (22), New Lucena (59), Passi (103), San Miguel (17), San Rafael (110), Santa Barbara (12), Tigbauan (69), San Joaquin (15)
Antique (4,680): Anini-y (156), Hamtic (3,081), Tobias Fornier (1,383), San Jose (60)
Capiz (308): Dumarao (308)
Aklan (740+): Buruanga (?), Malay (740)
Guimaras (789): Buenavista (189), Jordan (237), Sibunag (178), Nueva Valencia (185)
Negros Occidental (309): Isabela (309)
Romblon: Odiongan and Calatrava on Tablas Island, and San Jose on Carabao Island (unknown population size)
Total: 8,728+
Baruah (2000) lists the following locations.
Antique: Culuasi, Hamtic, San Jose, Sibalom, Tobias
Tina, Hamtic, Antique (512 people)
Capiz: Dumarao
Iloilo: Janiuay, Anilao, Cabatuan, Duenas, Dumangas, Mina, New Lucena, Passi, San Miguel, San Joaquin, San Rafael, Santa Barbara, Tigbauan
Nagpana, Barotac Viejo, Iloilo (500 people)
Aklan
Barangay Sabang, Buruanga, Aklan (4 households, 15 people)
Barangay Jesuna, Nabas, Aklan (3 households, 20 people)
In Malay, Aklan: Barangays Argao, Cubay Norte, Cubay Sur, Cogon, Boracay (total: 63 households, 321 people)
Pennoyer (1987) reports that Sogodnin is spoken by a few remaining speakers in Cogon, Malay (whose ancestors had moved from interior Sabang to Bakirohan to Cogon), and on Carabao and Boracay islands.