Jersey sits next to 3 phonetic neighbors — Jesse, Jerome, and Jericho are the closest matches by sound. Most share Jersey's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"Geirrapos island, grassy island"
"vigilant in war, son of Cathasach"
"gift of God"
"the legendary smith (from Weland/Völundr)"
"protector of mankind"
"son of Rhys, ardor and enthusiasm"
"knight, mounted warrior"
"follower of Christ, anointed one"
"lawman, legal authority"
"wolf"
"modern creative name blend"
"supplanter, one who follows at the heel"
"modern American invented name"
"little deer (Irish)"
"garden of God, orchard"
"bright day, day's light"
"the hardest gemstone, invincible"
"willow farm, ledge estate"
"love, romantic feeling"
"man of the forest"
Similar sound: These names share phonetic patterns with Jersey — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Norse origins, giving them the same cultural heritage as Jersey.
Rhythm: Jersey is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.