Nathalia sits next to 3 phonetic neighbors — Natalia, Natalie, and Nathalie are the closest matches by sound. Most share Nathalia's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"born on Christmas Day"
"pure, virginal"
"noble, adorned + lake/waterfall"
"most holy"
"pearl, precious gem"
"goddess of the hunt"
"laurel, victory"
"supplanter, held by the heel"
"beloved, wished-for child"
"Yahweh has shown favor"
"beautiful, pretty"
"power of the household"
"grace (via resemblance to gracia)"
"place of the La Ramee family"
"story, narrative"
"born at dawn"
"from the hay field"
"holy peacemaking, blessed reconciliation"
"gift of God"
"forever blooming"
Similar sound: These names share phonetic patterns with Nathalia — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Nathalia.
Rhythm: Nathalia is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.