Belladonna sits next to 3 phonetic neighbors — Bella, Donna, and Bellamy are the closest matches by sound. Most share Belladonna's Italian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"beautiful lady"
"phonetic variant; no inherent lexical meaning"
"creative phonetic respelling"
"bright, beautiful"
"God is gracious"
"manly, courageous"
"valiant, courageous"
"A Messianic title; place where the Ark of the Covenant rested"
"descendant of Ieuan (John)"
"dry (referring to the plant's habitat)"
"warm cloak (Roman garment)"
"settlement of Paega (a personal name)"
"trade wind"
"garden, vineyard"
"small songbird"
"heavenly, child of the sky"
"meadow, clearing"
"God is gracious"
"cool fragrance"
"divine feminine judge"
"highest point, citadel"
Similar sound: These names share phonetic patterns with Belladonna — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Italian origins, giving them the same cultural heritage as Belladonna.
Rhythm: Belladonna is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.