Guhu Oro

Guhu Oro, also called the Greater Binanderean family, groups the Papuan languages of the northeastern coast of the Bird's Tail, the southeastern peninsula of New Guinea. It has two branches: the divergent Guhu-Samane of the Waria valley in Morobe Province, and the Oro or Binanderean branch, spoken across Oro Province and including Binandere, Suena, the Orokaiva dialects and Baruga.

The family looks like a comparatively recent expansion from the north, whose inland communities gradually absorbed older Oceanic-speaking settlements on the coast; this contact even imposed subject-object-verb word order on the neighboring Papuan Tip languages.

The Orokaiva were remembered as formidable warriors defending their ridges. In 1545 Yñigo Ortiz de Retez sailed past these northern shores on the voyage that named New Guinea, without entering the mountain valleys behind them.