Sirach sits next to 4 phonetic neighbors — Cyrus, Silas, and Sarek are the closest matches by sound. Most share Sirach's Hebrew-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"Son of Sira; wisdom"
"modern invented name, creative combination"
"from the hall or manor house"
"shelter, hut"
"lord of the mountains"
"noble, high"
"dear one, beloved by the pool"
"part of the noble"
"twin (variant of Tavis/Thomas)"
"invented name combining brightness with home"
"thunder, of Thor"
"cold, icy in manner"
"one who lives near a spring or who springs"
"possessing unlimited power"
"Open land, wide expanse; one who ranges freely"
"hand"
"golden, made of gold"
Similar sound: These names share phonetic patterns with Sirach — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Sirach.
Rhythm: Sirach is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.