Dontavius sits next to 3 phonetic neighbors — Octavius, Dontavious, and Tavius are the closest matches by sound. Most share Dontavius's African-American (Latin/French roots)-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"noble lord (compound creation)"
"Athenian, of Attic culture"
"thorny shrub, wild rose"
"of the river Jordan"
"land of God (via Marrakesh, Berber origin)"
"dwelling by the stream"
"modern invented name with strength and vitality"
"God grants blessing to the sorrowful"
"modern invented name"
"lamb"
"noble, renowned"
"gift of YHWH"
"Healer, one who cures"
"valley of Wendel"
"scribe, one who reads and writes"
"thankful"
"noble strength"
"beloved friend"
"to tame, subdue"
"from the broad wood"
Similar sound: These names share phonetic patterns with Dontavius — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have African-American (Latin/French roots) origins, giving them the same cultural heritage as Dontavius.
Rhythm: Dontavius is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.