Daiya sits next to 5 phonetic neighbors — Daya, Diana, and Nadia are the closest matches by sound. Most share Daiya's Japanese cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"diamond, brilliant"
"bright one, light"
"respect, dignity"
"God has promised, promised by God"
"grace, unfading"
"moon goddess"
"small, little"
"slender, narrow"
"Beloved, wished for"
"corn meadow (maize + ley)"
"defender of mankind"
"youthful, downy"
"I will sing"
"follower of Christ (short for Christopher)"
"pure, clear"
"lion of God"
"invented modern name with no historical etymology"
"gracious, beautiful"
"God is my strength"
"honorable, respectable"
Similar sound: These names share phonetic patterns with Daiya — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Japanese origins, giving them the same cultural heritage as Daiya.
Rhythm: Daiya is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.