Mahnoor sits next to 5 phonetic neighbors — Mahnur, Mahnaz, and Noor are the closest matches by sound. Most share Mahnoor's Persian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"moonlight"
"princess, noblewoman"
"her father's delight"
"graceful, beautiful"
"bright star"
"high, exalted spring"
"sun"
"tree of the utmost boundary (Quranic)"
"wish; desire; hope"
"coquetry, delicate grace"
"gates of heaven, lush"
"dawn, the hour before sunrise"
"delightful, beautiful"
"night, dark beauty"
"moonlike beauty"
Similar sound: These names share phonetic patterns with Mahnoor — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Persian compound origins, giving them the same cultural heritage as Mahnoor.
Rhythm: Mahnoor is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.