Jaceyon sits next to 4 phonetic neighbors — Jason, Jace, and Jayson are the closest matches by sound. Most share Jaceyon's Greek Iason via American elaboration-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"healer (via Jason)"
"Thor's stone"
"modern invented name, brave one (possible African root)"
"bright will, shining desire"
"head of the pass"
"from Kelso (place name)"
"black, dark; time"
"clean, righteous"
"born of fire, handsome chief (via Kenneth/Cionaodha)"
"page boy (de Chiel)"
"from the lake"
"from the Cassius Roman family clan"
"modern American invented name"
"virtuous, upright"
"dark one"
"gift of God"
"blazing torch, flaming sword"
"lake colony, settlement by the pool"
"God heals, God supports"
"possibly derived from Jason (healer) via phonetic alteration"
"strong, enduring, firm"
Similar sound: These names share phonetic patterns with Jaceyon — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek Iason via American elaboration origins, giving them the same cultural heritage as Jaceyon.
Rhythm: Jaceyon is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.