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"
"youthful, downy-bearded"
"pearl"
"little red one"
"laurel tree; bay laurel"
"pure, innocent"
"flowing, like a stream"
"ocean, shell"
"sacred to Jove/Jupiter"
"brightness, radiance"
"free woman"
"ship's victory"
"peaceful, safe"
"God is gracious"
"animal horns"
"rose + gentle (folk etymology)"
"light, bright one"
"devoted to Paul, little one"
"altar of the sky, heavenly altar"
"born on Christmas Day, birthday of the Lord"
"God is gracious"
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.