Darnell sits next to 4 phonetic neighbors — Darnell, Arnell, and Cornell are the closest matches by sound. Most share Darnell's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"hidden nook, secret alcove"
"greatest"
"village by the street"
"pebbly place, stony path"
"slender one, the thin one"
"modern American invention combining Da- prefix with Marion"
"beloved of the sea"
"three, third-born"
"emperor, ruler"
"old friend"
"from the swampy land"
"nature name: rivers, waterways"
"cold, enduring"
"peace and agreement"
"crossroads, cross"
"nobleman, warrior"
"bright, shining"
"place by a waterway lock"
"Lord, have mercy (liturgical)"
"broad hillside"
"marrow of the sea, sea fortress"
Similar sound: These names share phonetic patterns with Darnell — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old French origins, giving them the same cultural heritage as Darnell.
Rhythm: Darnell is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.