Of the Niger River; flowing water
A modern American coinage likely inspired by the West African nation of Nigeria. The name ultimately derives from the Niger River, which may stem from the Tuareg phrase 'gher n gheren' meaning 'river of rivers'.
Less common today
Nygeria isn't in the latest US Top 1000. It last peaked at #7,620 in 1999.
US births per 5-year period, 1990βpresent (SSA data).