[1] On the basis of the presence of the phoneme /f/ in these names, early linguists once suspected that Ofo was a Muskogean language.

However, anthropologist John R. Swanton met an elder Ofo speaker, Rosa Pierrette, in 1908 while he was conducting fieldwork among the Tunica.

[2] Ofo follows a process similar to Grassmann's Law, with /h/ counting as an aspirated consonant: /oskʰa/ 'crane' + /afʰã/ 'white' > /oskəfʰa/ 'white egret' and /apʰeti/ 'fire' + either /təsʰihi/ 'to burn' or /təsʰihi/ 'to breathe' > /apesʰihi/ 'smoke'.

[4] Ofo distinguishes between alienable and inalienable possession by the use of a prefix for first-, second-, and third-person singular as well as first-person dual.

Iterative aspect is created by reduplication: The documentation of Ofo does not provide enough information to develop a complete syntax of the language.

Dative case appears in Ofo and can be interpreted as resembling an accusative pronoun in English.