Nilza sits next to 5 phonetic neighbors — Nilsa, Elsa, and Nilza are the closest matches by sound. Most share Nilza's Portuguese-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"champion (from Neil/Nils root)"
"valley"
"dear one, cherished"
"beloved, wished-for child"
"fairy queen, fairy princess"
"steadfast, faithful, constant"
"happy, fortunate, blessed"
"Moon goddess; pledged to God"
"dear one, beloved darling"
"from Mount Cynthus"
"harvester; from the island of Thera"
"little lion"
"little one (diminutive suffix -ina)"
"happy, fortunate"
Similar sound: These names share phonetic patterns with Nilza — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Norse origins, giving them the same cultural heritage as Nilza.
Rhythm: Nilza is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.