Pure, holy, or miracle
Nesly is a rare name often used in French-speaking Caribbean cultures, particularly Haiti. It is likely a modern variant or diminutive of Agnes, meaning 'pure' or 'holy', or potentially linked to the Spanish word 'milagro' via regional linguistic evolution.
Less common today
Nesly isn't in the latest US Top 1000. It last peaked at #10,140 in 1994.
US births per 5-year period, 1990βpresent (SSA data).