It is settled law that a ground of appeal is basically a highlight of the error of law or fact or mixed law and fact made by the court in the decision sought to be set aside in the appeal. It is the sum total of the reason(s) why the decision on appeal is considered by learned counsel for the appellant to be wrong and liable to be set aside. It follows therefore that for a ground of appeal to be capable of achieving the purpose of setting aside the decision appealed against, it has to be very substantial and must relate to the ratio of the decision, not directed at the obiter dictum of the court or in the judgment.
– Mukhtar JSC. Nwankwo v. Ecumenical (2007)