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"
"tree village (from Japanese Kimura)"
"flowing, river inlet"
"little red one"
"who is like God?"
"delicate, languishing"
"youthful, downy-bearded"
"clear, unsullied"
"rhythm, musical flow, beat"
"symbol of enduring affection and daily remembrance"
"diamond in the sky, place of rest"
"goodness, beneficence"
"quintessence, the truest form of something"
"God is gracious, God has shown favor"
"wished-for child"
"golden, of gold (d'or)"
"elf ruler with feminine suffix"
"forever blooming"
"ascent to Israel, spiritual elevation"
"rye field"
"woodland clearing"
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.