Lucy sits next to 4 phonetic neighbors — Lucia, Lacy, and Lacey are the closest matches by sound. Most share Lucy's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"light, illumination"
"dweller at the hall meadow"
"noble and tender"
"symbol of purity and rebirth"
"lioness of God"
"God has favored me"
"vow to God"
"bitter"
"farmer, earth worker"
"divine, celestial"
"dark beauty"
"divine play"
"famous type"
"person from Scotland"
"Courageous, valiant"
"small bird (the wren)"
"noble power"
"flower name"
"youth-producing, ever-young"
"rose festival"
Similar sound: These names share phonetic patterns with Lucy — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Lucy.
Rhythm: Lucy is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.