Zaydan sits next to 4 phonetic neighbors — Zaid, Aidan, and Zaidan are the closest matches by sound. Most share Zaydan's Arabic-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"one who grows and flourishes"
"treetop, eloquent speaker"
"gentle breeze, fresh air"
"sublime, magnificent"
"merciful, compassionate"
"one who prevents or restrains evil"
"the pure, the selected"
"happy, fortunate, blessed"
"guarded place"
"one who praises much"
"desired, wished for"
"freedom, liberation"
"devoted one"
"noble, honorable"
"first, primordial, beginning"
"the auspicious act of seeing the divine (darshan)"
"man, human being"
"radiant, luminous"
"unique, without equal"
"grandfather"
Similar sound: These names share phonetic patterns with Zaydan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Arabic origins, giving them the same cultural heritage as Zaydan.
Rhythm: Zaydan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.