Deisy sits next to 4 phonetic neighbors — Daisy, Desi, and Lacey are the closest matches by sound. Most share Deisy's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"day's eye"
"heritage, homeland"
"grey battle maiden"
"consecrated to God"
"gracious, lovely"
"rival, eager"
"powerful in battle, mighty warrior"
"of the way, from the road (place name origin)"
"of the Fabian clan, bean grower"
"God is gracious (via Jane/John)"
"white lily"
"feminine of Justin"
"gift of Zeus"
"bringer of victory"
"beloved"
"of Magdala, watchtower"
"gracious, beautiful"
"she who upholds goodness"
"angel, divine messenger"
Similar sound: These names share phonetic patterns with Deisy — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English origins, giving them the same cultural heritage as Deisy.
Rhythm: Deisy is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.