Rosario sits next to 4 phonetic neighbors — Rosaria, Rosalie, and Rosa are the closest matches by sound. Most share Rosario's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"rosary, garland of roses"
"weary, delicate"
"port, harbor"
"dry land, ground"
"noble one, of noble kind"
"grace, God has been gracious"
"one who hears, listener"
"clay, earth (Etruscan root)"
"radiant, luminous"
"free one, woman from France/the Franks"
"jade, precious stone (possible interpretation)"
"God is gracious"
"dear flower, small blossom"
"beautiful, pleasant"
"age, period of time"
"light, illumination"
"God is gracious"
"noble promise"
"noble, nobility"
Similar sound: These names share phonetic patterns with Rosario — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Spanish/Latin origins, giving them the same cultural heritage as Rosario.
Rhythm: Rosario is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.