Origin of admittance
Examples from the Web for re-admittance
Polly at once went frantic, mewing and scratching for re-admittance.Sigurd Our Golden Collie and Other Comrades of the Road|Katharine Lee Bates
She did so, and he disappeared, but in a moment his voice was again heard begging for re-admittance.Five Minutes' Stories|Mrs. (Mary Louisa) Molesworth
1580s, "the action of admitting," formed in English from admit + -ance (if from Latin, it would have been *admittence; French uses accès in this sense). Used formerly in senses where admission now prevails. Admissure was used in this sense from mid-15c.