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"
"goodness, beneficence"
"beloved, little Mary"
"God is abundance"
"canopy of leafy boughs"
"pure, virginal"
"beautiful, rosebud"
"all-encompassing, entire"
"blood red, vibrant red"
"black, dark"
"one who carries goods"
"care, protection"
"rising, ascending"
"torch of light (from Eleanor)"
"defender of men"
"spiritually renewed"
"from the marshes"
"possessor of goodness"
"dear to Saturn"
"mighty in battle"
"consecrated, holy"
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.