Kaci sits next to 5 phonetic neighbors — Casey, Kacey, and Kasey are the closest matches by sound. Most share Kaci's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"alert, watchful in battle"
"blind, Cecilias clan"
"Royal meadow clearing"
"joy, happiness, joyful"
"the happy one"
"princess, noble lady"
"God's gift"
"paradise, garden of heaven"
"grove clearing"
"noble one, little noble"
"free man (feminized)"
"conch shell"
"from the hunting ground"
"Yahweh is good"
"beautiful"
"land of the Aryans"
"heavenly, blind"
"of the Aryan/Indo-Iranian people"
"good victory"
"feminine form of Charles/Karl"
"of the Tatius family"
Similar sound: These names share phonetic patterns with Kaci — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Irish Gaelic origins, giving them the same cultural heritage as Kaci.
Rhythm: Kaci is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.