Vanity sits next to 3 phonetic neighbors — Vanessa, Verity, and Vanya are the closest matches by sound. Most share Vanity's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"emptiness, futility"
"freckled, speckled"
"song thrush, singing bird"
"high, exalted, sublime"
"industrious, hardworking (associated meaning)"
"descendant of Corraidhín (little spear)"
"the path, the way"
"helper, aid"
"lion of God"
"From the land of the Aryans"
"invented name, possibly meaning noble or grace"
"dew of heaven, my dew"
"enlightenment, awakening"
"corn meadow (maize + ley)"
"gracious, merciful"
"serene, calm, clear"
"Fierce protector with noble bearing"
"heavenly lei, flowers of heaven"
"variant of Sheila (blind one, or heavenly)"
"told by God"
"my God is abundance"
Similar sound: These names share phonetic patterns with Vanity — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin vanitas origins, giving them the same cultural heritage as Vanity.
Rhythm: Vanity is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.