Tresa sits next to 5 phonetic neighbors — Teresa, Theresa, and Tressa are the closest matches by sound. Most share Tresa's Italian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"from the island of Thera"
"pearl"
"lily flower"
"resolute protector"
"kola nut, sacred plant"
"of the sorrows (religious title)"
"of good birth, aristocratic"
"God saves / Yahweh is salvation"
"little one"
"flowering, blooming"
"Dweller at the marsh"
"excellent, outstanding"
"moon"
"of noble lineage, shining"
"short form of Valerie or Valentina"
"lover of horses"
Similar sound: These names share phonetic patterns with Tresa — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Tresa.
Rhythm: Tresa is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.