Of the people; belonging to the people
Demoni is likely a modern variant or creative derivative of names containing the Greek root 'demos', meaning people. It may also be used as a stylized variation of the Italian name Damiano or the French Damone. In some contexts, it is used as a unique contemporary invention without a singular historical lineage.
Less common today
Demoni isn't in the latest US Top 1000. It last peaked at #3,436 in 2012.
US births per 5-year period, 1990βpresent (SSA data).