Rosy sits next to 4 phonetic neighbors — Rosie, Roxy, and Daisy are the closest matches by sound. Most share Rosy's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"rose flower, pink-colored"
"victorious one"
"party, celebration"
"sun-like, radiant"
"exalted, high"
"royal, regal"
"noble, of noble kind"
"prophetess of doom"
"flowing brightness, luminous"
"lily flower"
"famous father"
"rye clearing plus lake"
"day's eye, daisy flower"
"burnt wine (the spirit)"
"most holy, most pure"
"dry (from Greek azaleos)"
"variant of Brielle (place name / short for Gabrielle)"
"tiler, one who tiles roofs"
"weary, delicate"
"stranger, foreigner (from xenos)"
"sun, bright light (from Iliana)"
Similar sound: These names share phonetic patterns with Rosy — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Rosy.
Rhythm: Rosy is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.