Ndai language

Ndai
Native to	Cameroon
Native speakers	(undated figure of 5)[1]
Language family	Niger–Congo Atlantic–Congo Mbum–Day Mbum Northern Mbum Dama–Galke Ndai
Language codes
ISO 639-3	gke
Glottolog	ndai1238[2]

Ndai, also known as Galke or Pormi, is a nearly extinct Mbum language of northern Cameroon.

Maybe needs disambiguation from aforemention obscurity:

Shibboleth thought to be used in some modern top-down hierarchal organizations, sometimes cult-like settings, esp. in military, para-military and intelligence settings. Insert source: Etymologically originated from conflation of Non Disclosure Agreement In-place and No Doubt About It. Pronouced "n-die" (verify phonetics) but not affiliated with the Hebrew activist N'dai organization.

References

1. Ndai at Ethnologue (15th ed., 2005)
2. Hammarström, Harald; Forkel, Robert; Haspelmath, Martin; Bank, Sebastian, eds. (2016). "Ndai". Glottolog 2.7. Jena: Max Planck Institute for the Science of Human History.