Mousa sits next to 4 phonetic neighbors — Musa, Moses, and Moussa are the closest matches by sound. Most share Mousa's Arabic-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"drawn from the water"
"happy, joyful, blissful"
"my God is majesty, God is splendor"
"cosmic, belonging to the universe"
"help, helper"
"the divinely guided, one who follows the right path"
"magnificence, nobility"
"handsome, well-born"
"pleasant, admirable, beautiful"
"trust, reliance"
"sweet basil, fragrant herb"
"reward, divine recompense"
"noble black horse"
"plenty, surplus"
"one who glorifies through remembrance"
"light, illumination"
"guardian, protector"
"gift, benefit"
"father of the young camel"
"right side, prosperity"
"skilled, expert, proficient"
Similar sound: These names share phonetic patterns with Mousa — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew/Egyptian origins, giving them the same cultural heritage as Mousa.
Rhythm: Mousa is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.