Darrelle sits next to 5 phonetic neighbors — Darrell, Darel, and Darelle are the closest matches by sound. Most share Darrelle's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"from Airelle, open meadow"
"earnest and springlike"
"house of figs"
"of the earth, earthling"
"pure, clear"
"from Venice, from the Veneti people"
"white wave, fair and smooth"
"old, wise river"
"little Claudine; little lame one (Roman family origin)"
Similar sound: These names share phonetic patterns with Darrelle — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Norman French origins, giving them the same cultural heritage as Darrelle.
Rhythm: Darrelle is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.