Unknown; likely a modern American invention
Nashaly is a modern name with no established historical etymology. It is likely a creative American coinage, possibly blending the surname-turned-first-name Nash with the popular feminine suffix '-ly' or '-aly', similar to names like Keishaly or Nayeli.
Less common today
Nashaly isn't in the latest US Top 1000. It last peaked at #2,227 in 2004.
US births per 5-year period, 1990βpresent (SSA data).