Kayvon sits next to 3 phonetic neighbors — Kevin, Kavon, and Devon are the closest matches by sound. Most share Kayvon's Persian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"Saturn (planet), ancient and wise"
"to add, to augment"
"eagle, swift and free"
"John (Hebrew cognate)"
"man of Armenia, Armenian"
"promised, appointed"
"universe, cosmos"
"victorious, joyful"
"contentment, satisfaction"
"gentle breeze, fresh air"
"goal, aspiration"
"beneficent, one who does good"
"king of kings, realm"
"water, clarity"
"lion-like"
"generosity, nobility, virtue"
"desire, wish, longing"
"excellence, perfection"
Similar sound: These names share phonetic patterns with Kayvon — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Persian origins, giving them the same cultural heritage as Kayvon.
Rhythm: Kayvon is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.