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"
"defender of mankind"
"God has answered"
"watchful, alert"
"dappled, spotted"
"beautiful one"
"precious gem, jewel"
"moon halo, soft glow of moonlight"
"pale, shining light"
"pure, beloved"
"ewe, grace"
"beloved lake; sea of bitterness + lake"
"fine porcelain; the nation of China"
"lake, waterfall"
"modern sound creation"
"joyful, playful"
"divine play, cosmic game"
"God is my refuge"
"God is my strength"
"Wood prepared for building"
"goddess Savitri, divine solar figure"
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.