Nasai sits next to 4 phonetic neighbors — Nasir, Nassir, and Naseem are the closest matches by sound. Most share Nasai's Arabic-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"from Nasa (place in Khurasan)"
"may God protect"
"Gift, something precious"
"moonlit, bright moon"
"modern invented variant"
"harbor, port"
"variant of Amal, meaning work or action"
"one who lives long, prosperous"
"uncle, kinsman (alternative etymology)"
"calf, heifer (symbolic gentleness)"
"grace, elegance"
"thanks, gratitude"
"noble, dignified"
"little warrior"
"wealth, prosperity, riches"
"savior, redeemer"
"may God give increase"
"God is gracious (via Juan/John)"
"the hidden one, the invisible"
Similar sound: These names share phonetic patterns with Nasai — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Arabic nisba origins, giving them the same cultural heritage as Nasai.
Rhythm: Nasai is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.