Oneida is an endangered Iroquoian language spoken fluently by fewer than 250 people. This is the first comprehensive dictionary of the Oneida language as used in Ontario, where most of the surviving speakers reside.

The dictionary contains both Oneida-English and English-Oneida sections. The Oneida-English portion includes some 6000 entries, presenting lexical bases, particles and grammatical morphemes. Each entry for a base shows several forms; illustrates inflection, meaning and use; and gives details regarding pronunciation and cultural significance. The English-Oneida entries...