The Oron, who call themselves ɔrɔ, number approximately 50,000 individuals, and inhabit 90 villages in Calabar Province, Nigeria. Lexicon and morphology establish the affiliation of Oron with the Ibibio-Efik dialect cluster recognized by Westermann and Bryan, and with Efik in the Central Branch (Cross River languages) of Greenberg's Niger-Congo family.
The material is based on the speech of Mr. Okon Ukam of Eweme village. Since the informant did not speak English the writer communicated with him through Mr. Dimo Udoh Eyo, an Ibibio from Etobodom, Uyo District, who became conversant with the Oron language in his youth. Between March and May 1953, 10,000 words of text and a vocabulary list of approximately 1,700 morphemes were transcribed. Although it is not assumed that all possible tenses or tone permutations have been obtained, it is believed that most of the tenses are described. The writer acknowledges his indebtedness to Ward's study of Efik, and Lounsbury's study of Oneida verb morphology since each has served as a model for the presentation of certain aspects of Oron morphology.