Keisi sits next to 4 phonetic neighbors — Casey, Kasey, and Kaci are the closest matches by sound. Most share Keisi's Japanese cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"joyful poem"
"astonishing event"
"corn meadow (maize + ley)"
"beautiful"
"life force, vital energy"
"peaceful, calm"
"jasmine flower (creative variant)"
"God is gracious (Jo) + lake or waterfall (Lynn)"
"beyond praise, highly commendable"
"beautiful, melodious (evocative)"
"one who belongs to the community"
"industrious, hardworking (associated meaning)"
"pretty, lovely"
"life"
"wandering star, planet"
"intense happiness, bliss"
"little honor, dear one"
"little drop of moisture, rain"
"child of light"
"who is like God"
Similar sound: These names share phonetic patterns with Keisi — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Japanese origins, giving them the same cultural heritage as Keisi.
Rhythm: Keisi is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.