Jayson sits next to 4 phonetic neighbors — Jason, Mason, and Grayson are the closest matches by sound. Most share Jayson's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"to heal (from iasthai)"
"lion of God"
"long hill, ridge"
"Yahweh is merciful"
"fifth, born fifth"
"worthy of praise"
"three, the third"
"descendant of Flann (ruddy, red)"
"son of the lion"
"descendant of Madan (little dog)"
"thorny shrub, prickly plant"
"remedy, cure (folk etymology)"
"servant, messenger"
"beauty, adornment, grace"
"son of Nicholas (via Cole)"
"gift of God, blessed one"
"supplanter's son"
"statement of belief, system of faith"
"healer (from Greek Jason)"
"comforted by God"
"charcoal, dark"
Similar sound: These names share phonetic patterns with Jayson — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Jayson.
Rhythm: Jayson is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.