Avett sits next to 3 phonetic neighbors — Everett, Evett, and Violet are the closest matches by sound. Most share Avett's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"hazel tree, little bird"
"gazelle"
"air, atmosphere"
"grace, eternal, unfading"
"peacock"
"to rise above, to stand out"
"beloved"
"beautiful rose"
"Night; dark beauty (elaboration of Layla)"
"Blend of Dee and Asia; gift or joy"
Similar sound: These names share phonetic patterns with Avett — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old French origins, giving them the same cultural heritage as Avett.
Rhythm: Avett is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.