Vernadeen sits next to 4 phonetic neighbors — Verna, Nadine, and Ernestine are the closest matches by sound. Most share Vernadeen's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"verdant, green"
"poetic muse of Scotland"
"grace, favor (from Anna)"
"fortunate warrior"
"remembrance"
Similar sound: These names share phonetic patterns with Vernadeen — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Vernadeen.
Rhythm: Vernadeen is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.