Lucy sits next to 5 phonetic neighbors — Louis, Lucius, and Luke 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
"born at dawn or daylight"
"nickname for Esteban (crowned one)"
"pure, innocent"
"ruler of the wheel, wheel king"
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.