Thorne sits next to 5 phonetic neighbors — Thor, Thornton, and Stone are the closest matches by sound. Most share Thorne's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"thorn, prickly plant"
"of the forest, woodland dweller"
"gentle, lenient"
"powerful person, dynamic one"
"of the shade, of the shelter"
"noble friend"
"descendant of Bibb, a pet form of Isabel"
"Modern invented name; energetic and bold spirit"
"spear bearer, warrior"
"to dazzle, stun with brightness"
Similar sound: These names share phonetic patterns with Thorne — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English origins, giving them the same cultural heritage as Thorne.
Rhythm: Thorne is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.