Proto-Bantu is the ancestor of the Bantu languages.
Prenasal consonants are denoted with m before labials, n before other consonants.
Proto-Bantu sources use a variety of notations for the vowels. They are shown here.
|High/superhigh||i u||i̧/u̧||i u|
|Near-high||ɪ ʊ||i u||e o|
|Mid||e o||e o||ɛ ɔ|
On Wiktionary, the ɪ/ʊ notation is used. It is important to check which notation a source uses, to avoid confusion.
The two tones of Proto-Bantu are denoted with an acute ´ for a high tone and grave ` for a low tone. The tone marks may be omitted if they are unknown. It is also permissible to redirect a toneless form to the toned form. For example, *mʊntʊ may redirect to *mʊ̀ntʊ̀.