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"
"white wave, fair and smooth"
"house of figs"
"beloved, desired"
"pure, clear"
"old, wise river"
"little Claudine; little lame one (Roman family origin)"
"of the earth, earthling"
"of spring, springlike, fresh"
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.