Marietta sits next to 5 phonetic neighbors — Mariette, Harriet, and Mariela are the closest matches by sound. Most share Marietta's Italian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"wished-for child, beloved"
"sword meadow"
"noble, exalted"
"doorkeeper"
"she who intoxicates, intoxicating one"
"modern invented name"
"elm tree"
"goddess, divine"
"heavenly chief"
"joyful, playful one"
"modern elaboration of Zora"
"son of Owen"
"modern invented name, possibly of the forest"
"God is my strength, my God is high"
"mercy, compassion, grace"
"feminine form of John"
"the lemon fruit"
"meadow (from -leigh suffix)"
"grace, divine goodwill"
"home ruler (short form of Henrietta)"
"from the hollow, hollow dweller"
Similar sound: These names share phonetic patterns with Marietta — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew via Latin origins, giving them the same cultural heritage as Marietta.
Rhythm: Marietta is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.