duplicate
nounmasculine/dupliˈkadu/medium
du·pli·ca·do
Definition
An identical copy of a document, key, or other object; a duplicate.
Always keep a duplicate of the invoice for possible complaints.
He made a duplicate key to give to his son.
Etymology
Do latim 'duplicatus, -a, -um', particípio passado de 'duplicare' (dobrar).