Dayson sits next to 5 phonetic neighbors — Jason, Mason, and Grayson are the closest matches by sound. Most share Dayson's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of Day, child of daylight"
"one from the sea"
"sword"
"solid, strong"
"right-handed, skillful"
"ash tree town, settlement near ash trees"
"healing, remedying"
"God hears, gift of God (possible intention)"
"pure, innocent"
"rocky hill, ancient Armenian region"
"reddish complexion"
"vigilant in battle (from Casey/Cathasach root)"
"Yahweh is gracious"
"to offer, to announce"
"modern expansion of Azariah"
"crafty, wily"
"blameless and complete before God"
"God's friend, divine companion"
"that which is yet to come"
"modern invented name, literary creation"
Similar sound: These names share phonetic patterns with Dayson — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have English origins, giving them the same cultural heritage as Dayson.
Rhythm: Dayson is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.