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"
"jade, precious stone (possible interpretation)"
"sun, sunlight"
"gift of the sky"
"gift from God"
"priceless, inestimable"
"slope, hillside"
"grace, favor (from Ana/Hannah)"
"grace, God has been gracious"
"maiden, girl"
"noble, aristocratic"
"port, harbor"
"God is gracious"
"foreign, other"
"evening, twilight"
"of the sun, sunlit"
"weary"
"little warrior, warlike"
"eternal, everlasting"
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.