Tirzah sits next to 4 phonetic neighbors — Tirza, Tara, and Thirza are the closest matches by sound. Most share Tirzah's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"she is my delight, pleasant"
"noble and soft/gentle"
"paradise, otherworld"
"lily flower"
"peaceful sky"
"royal residence, castle town"
"my father is joy"
"God is abundance"
"free woman"
"praised, let him be praised"
"pleasing to the senses, physically attractive, excellent"
"lake, waterfall"
"Christian woman"
"farmer, earthworker"
"cassia, cinnamon spice"
"variant of Agnes/Vanessa"
"he who strives with God and prevails"
"day, brightness"
"force, capability"
"flowing, ease"
"weary, delicate"
Similar sound: These names share phonetic patterns with Tirzah — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew (ratzah) origins, giving them the same cultural heritage as Tirzah.
Rhythm: Tirzah is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.