Therese sits next to 4 phonetic neighbors — Teresa, Theresa, and Terese are the closest matches by sound. Most share Therese's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"from the island of Thera"
"bright, radiant (from Slavic root)"
"west meadow, western woodland clearing"
"open woodland clearing"
"sea of grace, beloved grace"
"the desired one"
"Fair one from the meadow"
"fortified hill"
"Wished for child"
"grace, kindness"
"noble, kind"
"other, foreign honor"
"little pearl"
"sea of bitterness plus grace"
"beloved one's descendant"
"little Josée, beloved addition"
"calm, tranquil"
"Soft-haired, youth"
"slender, elegant"
"bright settlement, Beorthelm's town"
"settlement by the stream"
Similar sound: These names share phonetic patterns with Therese — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Therese.
Rhythm: Therese is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.