Devereaux sits next to 4 phonetic neighbors — Deveraux, Devero, and Everett are the closest matches by sound. Most share Devereaux's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"from Evreux, from the Evreux region"
"great, venerable"
"chalice, cup"
"ruler, one who rules"
"strong, powerful"
"gap, chasm"
"white hawk, battle hawk"
"son of Brice, son of the speckled one"
"fame and glory"
"from the Frankish haigro (heron)"
"gift of God (folk etymology)"
"from Dreux (ancient French city name)"
"modern coinage; possibly day-bright valley dweller"
"follower of Dionysus (god of wine)"
"from Rome, Roman person"
"warrior"
"the king"
"modern blended name (Nash + -ton)"
"strong lord"
"God's faithful one"
"scarce, uncommon"
Similar sound: These names share phonetic patterns with Devereaux — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have French/Norman origins, giving them the same cultural heritage as Devereaux.
Rhythm: Devereaux is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.