This is the 12598th most frequent Spanish word.
motiv
"Motiv" is not a Spanish word. You may mean "motivo," which means "motive" or "reason."
In this sentence, 'motivo' is used to mean 'reason,' the cause for something.
El motivo de su alegría era su éxito.
The reason for her joy was her success.
Here, 'motivo' refers to a decorative or thematic pattern.
El diseñador eligió un motivo floral para la tela.
The designer chose a floral motif for the fabric.
In this case, 'motivo' is used as 'motive,' meaning the underlying intention or reason for behavior.