Teresa sits next to 4 phonetic neighbors — Theresa, Therese, and Tessa are the closest matches by sound. Most share Teresa's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"summer"
"modesty, faithfulness (flower symbolism)"
"fragrant spice"
"to strive, to rival, to excel"
"mountain region"
"gentle, branch, to draw water"
"heaven, the sky"
"compassionate friend, companion"
"defender, helper of mankind"
"flickering meadow"
"son of Ellis, descendant of Elias"
"rose + gentle (folk etymology)"
"beautiful rose"
"petite woman"
"laurel tree; bay laurel"
"sun"
"wealthy"
"my God has answered"
"bright lake, shining pool"
"God is gracious"
"of the lily, lily-like"
Similar sound: These names share phonetic patterns with Teresa — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Teresa.
Rhythm: Teresa is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.