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"
"short form of Valerie or Valentina"
"sorrows, pains"
"little one"
"sixth"
"lover of horses"
"life, living"
"God saves / Yahweh is salvation"
"of good birth, aristocratic"
"pure"
"flowering, blooming"
"kola nut, sacred plant"
"joy, happiness"
"resolute protector"
"Dweller at the marsh"
"joyful, merry, carefree"
"of the stars, star-like"
"of noble lineage, shining"
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.