Chauncey sits next to 3 phonetic neighbors — Chancy, Ansel, and Percy are the closest matches by sound. Most share Chauncey's English-origin cluster, so the rhythm and vowel shape carry across the list.
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"chancellor, keeper of records"
"cloth merchant, fabric trader"
"slender, lean, narrow"
"the smallest unit of matter"
"wheel maker, craftsman"
"lordly, masterful"
"modern invented name, variant of Cole/Colson"
"modern invented name; Ty (strength) + aire (air, atmosphere)"
"champion, winner"
"place name: town in Pembrokeshire, Wales"
"modern invented name"
"of Sean"
"handsome, gentle"
"literary name of uncertain origin"
"pure (via Katharina in Norwegian use)"
"gift of God"
"Carl's town or farm"
"clever, astute"
"faithfulness, devotion, steadfast allegiance"
"hidden store, treasure"
"from Stockton"
Similar sound: These names share phonetic patterns with Chauncey — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old French origins, giving them the same cultural heritage as Chauncey.
Rhythm: Chauncey is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.