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"
"my God is abundance, consecrated to God"
"nocturnal, of the night"
"combination of Mary and Lena"
"rain"
"of noble character"
"Supplanter, one who follows"
"my God is an oath"
"narrow road, pathway between hedges"
"starry, relating to stars"
"eternity, immortality"
"little Eliot"
"God is gracious"
"of the sea; bitter; pearl"
"from the riverbank and lake"
"tailor, one who cuts cloth"
"charcoal farm"
"warlike, brave"
"lake or waterfall + meadow clearing"
"animated, spirited"
"Youthful, downy-bearded"
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.