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"
"dawn, radiance"
"fire, grain of fire (Gaelic Eithne)"
"dear one, beloved"
"mighty, alive"
"chalk landing place"
"mighty in battle"
"lily (flower)"
"small stream, brook"
"open grassland, savanna"
"hardworking, industrious (via Millicent)"
"ascending, sublime, exalted"
"cassia, cinnamon spice"
"city of mosaics"
"harmony, peace"
"modern invented name"
"cheerful, merry, joyful"
"of noble birth"
"flower"
"from the marshes"
"to know, to be wise"
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.