Elvira sits next to 4 phonetic neighbors — Elvina, Elara, and Vera are the closest matches by sound. Most share Elvira's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"foreign, true"
"beloved one's descendant"
"vine, climbing plant"
"rhyming pet form of Mary"
"lion of God (as short form of Ariel)"
"feminine form of Charles"
"free one, Frenchman"
"cheerful, glad"
"air, atmosphere, breeze"
"Beautiful"
"from the island of Cyprus"
"beloved grace"
"pledged to God, God is my oath"
"Of the sea, sea maiden"
"my God is abundance, consecrated to God"
"state of dreamy meditation"
"divine grace, favor"
"starry, relating to stars"
"dark-feathered bird, the raven"
"grace, favor"
"vigilant, watchful"
Similar sound: These names share phonetic patterns with Elvira — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Visigothic Germanic origins, giving them the same cultural heritage as Elvira.
Rhythm: Elvira is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.