Croix sits next to 3 phonetic neighbors — Cruz, Kwa, and Croe are the closest matches by sound. Most share Croix's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"cross, the cross of Christ"
"nature name: rivers, waterways"
"garden, orchard of God"
"hollow, empty space"
"eminent marrow"
"remembered by the Lord"
"my God is Yahweh"
"garden of God, orchard"
"of the sea (via Marius)"
"noble and ready"
"one who sails, mariner"
"of Jove (Jupiter), sky father"
"hollow, cauldron"
"gift of God"
"son of Rhys, son of the ardent one"
"independent one, unbranded steer, nonconformist"
"king's town, royal settlement"
"descendant of Bradan (salmon)"
"the best, highest card"
Similar sound: These names share phonetic patterns with Croix — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have French via Latin origins, giving them the same cultural heritage as Croix.
Rhythm: Croix is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.