Quincey sits next to 3 phonetic neighbors — Quincy, Quinci, and Quinn are the closest matches by sound. Most share Quincey's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"estate of the fifth son"
"living, alive"
"living, vital"
"son of Cathal, son of the battle-ruler"
"spiritual God-reference through -yah suffix"
"lake; peaceful water"
"helmeted, noble protection"
"water, spring"
"married, belonging to God"
"summer writer"
"cleanness, freedom from sin"
"gentle enclosure"
"blind, sixth (via Cecilia)"
"victory; triumph"
"a day's travel; life's path"
"oak tree (via Ayla)"
"beautiful"
"lake (from Welsh lynn)"
"musical balance and agreement"
"creative blend of Russ + French -chelle suffix"
"butterfly (by association with Vanessa genus)"
Similar sound: These names share phonetic patterns with Quincey — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have French/Latin origins, giving them the same cultural heritage as Quincey.
Rhythm: Quincey is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.