Kaycie sits next to 3 phonetic neighbors — Casey, Kasey, and Lacey are the closest matches by sound. Most share Kaycie's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"vigilant, watchful"
"royal, noble sky"
"divine, godly"
"angel, messenger of God"
"courage, spirit, determination"
"dawn, radiance"
"heavenly (via Hawaiian Leilani influence)"
"rhythm, musical flow"
"modern blend of Shasta and -lyn suffix"
"meadow near the hermitage"
"hunter, rising in the sky"
"land of the Germani people"
"of Mars, belonging to the war god"
"lake-elm place"
"gift of God, remembered by God"
"woodland clearing with hares"
"courageous, valiant"
"nobility, of noble descent"
"life-giving, full of life"
"brave, manly"
"bright, clear (Clara) + beautiful (Belle)"
Similar sound: These names share phonetic patterns with Kaycie — 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 Kaycie.
Rhythm: Kaycie is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.