To language

To is an unclassified Mbum language of northern Cameroon and the Central African Republic. It is only used as a second language, as the secret male initiation language of the Gbaya.

To
Native to	Cameroon, Central African Republic
Native speakers	None[1] (2nd-language use only)
Language family	Niger–Congo Atlantic–Congo Mbum–Day Mbum (unclassified) To
Language codes
ISO 639-3	toz
Glottolog	tooo1238[2]

References

1. To at Ethnologue (18th ed., 2015)
2. Hammarström, Harald; Forkel, Robert; Haspelmath, Martin, eds. (2017). "To". Glottolog 3.0. Jena, Germany: Max Planck Institute for the Science of Human History.