Deanna sits next to 4 phonetic neighbors — Deana, Diana, and Dianna are the closest matches by sound. Most share Deanna's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"divine, goddess"
"variant of Darren: great, large"
"world-mighty"
"wishes, desires"
"modern invented name"
"from the manse, house near the church"
"From the homestead of Aegen; Old English place-name surname"
"A combination name: Del (possibly from dale, a valley) and Lloyd (W..."
"sword, torch"
"of Taurus; bull-like; strong and steadfast"
Similar sound: These names share phonetic patterns with Deanna — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin Diana origins, giving them the same cultural heritage as Deanna.
Rhythm: Deanna is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.