Dewayne sits next to 4 phonetic neighbors — Duane, Dwayne, and Wayne are the closest matches by sound. Most share Dewayne's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"dark, swarthy (from Irish Dubhán)"
"of the Saxon people"
"slender"
"clever, skilled"
"oarsman, rower"
"modern variant combining Arabic root with contemporary spelling"
"hollow"
"knife maker"
"determined guard, resolute protector"
"happiness, joy, rejoice"
"shining like the moon"
"visionary dreamer"
"oak grove"
"from the hill spring"
"Yahweh is my strength"
"strife, contest"
"victory of the people (as short form of Nicholas)"
"powerful ruler, brave leader"
"foreigner, one from abroad"
"short form of Cameron or Camden"
"completion, eternity"
Similar sound: These names share phonetic patterns with Dewayne — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Irish Gaelic origins, giving them the same cultural heritage as Dewayne.
Rhythm: Dewayne is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.