With a French ban against use of the Bamum script in schools and without Njoya to promote the script, it soon fell into disuse and was forgotten by the majority of the Bamum people.
Kuna prantslased keelasid bamumi kirjakeele kasutamise koolis ning polnud ka enam Ndzoiat, lakati seda kasutamast ning see vajus varsti enamiku bamumide jaoks unustustehõlma.