Terrence sits next to 4 phonetic neighbors — Terence, Terrance, and Torrance are the closest matches by sound. Most share Terrence's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"from the Roman gens Terentia"
"power of peace"
"beloved youngest son"
"noble birth, upper class"
"mighty peace"
"fleet of ships"
"deer-friend, divine spear"
"son of Henry"
"merciful, compassionate"
"from the pool or marsh"
"God has exalted (Jah + kai)"
"holy name, sacred name"
"modern invented name"
"from Radley (red clearing)"
"little seal"
"staff bearer, wand wielder"
"divine spear, god's spear"
"free man, warrior"
"worth, worthiness"
"sky, heavens"
"peaceful ruler"
Similar sound: These names share phonetic patterns with Terrence — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Terrence.
Rhythm: Terrence is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.