Adelaida sits next to 5 phonetic neighbors — Adelaide, Adela, and Adeline are the closest matches by sound. Most share Adelaida's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"noble kind, noble natured"
"mistress, lady, the lady of the house"
"dark-complexioned, dark beauty"
"famous grace, graceful warrior"
"most holy"
"grace, favor (from Ana/Hannah)"
"possessor of good, upholder of good"
"night rain"
"mistress, noblewoman"
"life"
"honey-beautiful (mel + linda)"
"protector, guardian"
"God is gracious"
"God will add"
"shining light"
"gazelle, tender"
"birthday of the Lord"
"raspberry (fruit)"
"noble, of noble kind (if from Adal/Ali roots)"
"sky blue, azure color"
Similar sound: These names share phonetic patterns with Adelaida — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old High German origins, giving them the same cultural heritage as Adelaida.
Rhythm: Adelaida is a 5-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.