Dayne sits next to 3 phonetic neighbors — Dane, Wayne, and Lane are the closest matches by sound. Most share Dayne's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"valley"
"son of the devotee of Saint Faolán"
"strength, exalted one"
"my strength is Yahweh"
"like unto God"
"to descend"
"Yahweh has been gracious"
"craftsman, artisan"
"beautiful, of noble beauty"
"rich in friends"
"slender, graceful"
"destroyer (possible etymological root)"
"royal clearing"
"strength, virtue, honor"
"grey valley or grey pool (surname origin)"
"flow, great river"
"God is salvation"
"flood tide, abundance"
"born on Sunday (in some traditions)"
"variant of Kashton (Kash + ton)"
Similar sound: These names share phonetic patterns with Dayne — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English origins, giving them the same cultural heritage as Dayne.
Rhythm: Dayne is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.