Joy sits next to 4 phonetic neighbors — Joe, Joey, and Roy are the closest matches by sound. Most share Joy's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"great happiness, delight"
"unique, one of a kind"
"great, venerable, magnificent"
"son of Dax"
"from the rocky peaks"
"word, principle"
"God has hidden, protected by God"
"fair warrior, white hero"
"Caesar, leader"
"peaceful, gentle"
"strength, permanence"
"that one (colloquial Tagalog)"
"peaceful will"
"traveler, crossroads"
"American variant of Dante"
"of Apollo, strength"
"friend, ally"
"surname of uncertain origin"
"God is gracious"
"saddlemaker, one from the homestead"
Similar sound: These names share phonetic patterns with Joy — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old French joie via Latin gaudium origins, giving them the same cultural heritage as Joy.
Rhythm: Joy is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.