Adyline sits next to 4 phonetic neighbors — Adeline, Adelaide, and Adaline are the closest matches by sound. Most share Adyline's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"noble kind, noble type"
"flame, hill"
"peaceful ruler"
"pearl"
"gift of God"
"royal clearing, king's wood"
"Wide meadow or wide island"
"God will add; gracious"
"follower of Christ"
"defender of the people (from Greek roots of Lex)"
"defender of mankind"
Similar sound: These names share phonetic patterns with Adyline — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic origins, giving them the same cultural heritage as Adyline.
Rhythm: Adyline is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.