Laci sits next to 4 phonetic neighbors — Lacey, Lacy, and Stacy are the closest matches by sound. Most share Laci's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"from Lassy (Normandy), de Laci"
"bent river or stream"
"woodland meadow clearing"
"beloved"
"without deceit, wholehearted"
"follower of Christ, Christian"
"bitter, sorrow, grief"
"dark settlement, coal town"
"purity, moral cleanliness"
"from Zaria (city in Nigeria)"
"dwelling near a cross"
"royal child of heaven"
"hunter's meadow"
"torch, illumination"
"prosperous, flourishing"
"rest, ewe (via Rachel)"
"beloved, womanly strength"
"from Lucania (southern Italy)"
"from Tullius (Latin family name)"
"beloved of the sky"
Similar sound: These names share phonetic patterns with Laci — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Norman French origins, giving them the same cultural heritage as Laci.
Rhythm: Laci is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.