Carolyn sits next to 3 phonetic neighbors — Caroline, Carol, and Carolina are the closest matches by sound. Most share Carolyn's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"free woman"
"born at dawn"
"dark, black"
"ray of light (modern association)"
"night angel"
"noble kind"
"calming, soothing (by association with the herb)"
"strip-shaped woodland clearing"
"royal daughter, daughter of a king"
"queen"
"gold"
"stone of the side"
"goddess of spring, month of May"
"dawn, bright star"
"son of Carr, marsh dweller's son"
"boomerang, curved throwing stick"
"street"
"alive, living"
"my God is an oath, pledged to God"
"fern plant, feathery frond"
Similar sound: These names share phonetic patterns with Carolyn — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic origins, giving them the same cultural heritage as Carolyn.
Rhythm: Carolyn is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.