Northwest Solomonic languages

It includes the Austronesian languages of Bougainville and Buka in Papua New Guinea, and of Choiseul, New Georgia, and Santa Isabel (excluding Bugotu) in Solomon Islands.

The unity of Northwest Solomonic and the number and composition of its subgroups, along with its relationship to other Oceanic groups, was established in pioneering work by Malcolm Ross.

Basic vocabulary in many Northwest Solomonic languages is aberrant, and many forms do not have Proto-Oceanic cognates.

[4] Below, Ririo, Zabana, and Maringe are compared with two Southeast Solomonic languages.

Aberrant forms are in bold.