Caia sits next to 3 phonetic neighbors — Kaia, Maya, and Zara are the closest matches by sound. Most share Caia's Welsh cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"to rejoice, joyful"
"divine grace, favor"
"pure"
"honey, sweet"
"lake, waterfall"
"clarity, clearness"
"grace, favor"
"lake, pool (from Lynn)"
"berry meadow"
"bright-headed, strife"
"Lake, waterfall"
"he who holds firm to good"
"heavenly, sky princess"
"Of the sea, sea maiden"
"forever flowering"
"quince (the fruit)"
"speech, utterance"
"cheerful, glad"
"joy, happiness, joyful"
"grove clearing"
"sky father, father god"
Similar sound: These names share phonetic patterns with Caia — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Caia.
Rhythm: Caia is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.