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"
"little fire"
"friend of horses"
"home strength, powerful ruler"
"place of the blue dye plant"
"descent, descending"
"place of meeting"
"to glorify, worship, and give thanks to God"
"Mann's people, son of the man"
"sea/pure/rejoice (Kai) + son of (-sen)"
"from Saint-Denis"
"from the valley"
"coal settlement; dark farmstead"
"modern American creation with roots in Keon (God is gracious)"
"creative American combination name"
"he who grasps the heel"
"raised by God, established by YHWH"
"fresh, new"
"admirable, fine, fortunate"
"modern coinage; possibly town settlement"
"who is like God?"
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.