nogmastico is incorrectly written and should be written as "Onomastico or onomastics." being its meaning:
This badly written word. It should be a birthday or name. It is the science that lists the name and explores its origins and meaning. Also refers to the Saint day of each person who is currently mistaken for birthday and told also birthday. ( They previously agreed, because it was customary to place the name of a person, according to the name of the Saint of the day of birth )
