Pacey sits next to 4 phonetic neighbors — Casey, Lacey, and Macy are the closest matches by sound. Most share Pacey's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"from Pacy-sur-Eure"
"race, swift movement"
"he gave"
"from the heath, heathen land"
"son of Jay, supplanter"
"gift of God (folk etymology)"
"palm tree, upright"
"Yahweh is my God"
"beloved (possibly influenced by love)"
"shearer of woolen cloth, cloth cutter"
"outlaw, pursued one"
"fair, white + warrior, hero"
"vigilant, watchful"
"who is like God?"
"strong, powerful"
"short form of Isaiah"
"mighty as a bear"
"Mann's people, son of the man"
"speckled, freckled"
"hat maker, cap maker"
"Eorla's settlement (personal name etymology)"
Similar sound: These names share phonetic patterns with Pacey — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have French origins, giving them the same cultural heritage as Pacey.
Rhythm: Pacey is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.