Silver or money
In the Chin languages of Myanmar, Ngun is a traditional name signifying silver or wealth. It is often used in compound names to denote value and preciousness within the family.
Less common today
Ngun isn't in the latest US Top 1000. It last peaked at #9,908 in 2017.
US births per 5-year period, 1990βpresent (SSA data).