Adelle sits next to 5 phonetic neighbors — Adele, Adela, and Adelaide are the closest matches by sound. Most share Adelle's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"noble, of noble birth"
"halo of moonlight"
"snow"
"green, the color of nature"
"remarkable story, myth"
"resurrection"
"ash tree meadow"
"brave, manly"
"purity, moral cleanliness"
"mighty in battle"
"fertile land, place of plenty"
"briar rose (fairy tale association)"
"gift of God"
"dawn"
"modern American coinage"
"descendant of the fire god"
"divine, belonging to heaven"
"honor, noble"
"of Mars, belonging to the war god"
"harmony, peace, concord"
"silver"
Similar sound: These names share phonetic patterns with Adelle — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old High German origins, giving them the same cultural heritage as Adelle.
Rhythm: Adelle is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.