Kaz sits next to 3 phonetic neighbors — Caz, Kas, and Jaz are the closest matches by sound. Most share Kaz's Polish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"peace-keeper, destroyer of enemies' glory"
"Yahweh is my strength"
"to emit light, be radiant"
"from Courtenay (place in France)"
"writing feather, quill pen"
"strong fighter (from bar + hard)"
"divine smith"
"well-born, of noble birth"
"tough, strong, resilient"
"steward, estate guardian"
"home ruler (from Henry)"
"cleric, church official"
"brown-haired warrior"
"falcon keeper, falconer"
"writing tablet, fresh start"
"strength, honor"
"of royal lineage, kingly"
"short form of Christopher"
"rye clearing, wood clearer"
"combination of Kai (sea/earth) and -ler suffix (one who)"
Similar sound: These names share phonetic patterns with Kaz — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Slavic origins, giving them the same cultural heritage as Kaz.
Rhythm: Kaz is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.