Virble sits next to 3 phonetic neighbors — Myrtle, Verbal, and Mable are the closest matches by sound. Most share Virble's American folk etymology-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"life, vitality"
"God is gracious; feminine variant of John"
"heavenly star"
"of the Verginius family"
"strong wolf, mighty hound"
"from the sea, sea fortress"
"lady, mistress of the house"
"merry, festive, cheerful"
Similar sound: These names share phonetic patterns with Virble — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have American folk etymology origins, giving them the same cultural heritage as Virble.
Rhythm: Virble is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.