divulge - Dictionary definition and meaning for word divulge
di + vulge close ti not to indulge...so reveal it
Divulge = di(double) + vul(fault) + ge; double fault of ge is come out in its product.
Div (split) + Vault (secret box) - > reveal
Di (not) + vulge(vulgar_)..to prove that your relationship is not vulgar you will reaveal the relationship.