Maddix sits next to 3 phonetic neighbors — Maddox, Madoc, and Mattix are the closest matches by sound. Most share Maddix's Welsh cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of Madoc, fortunate"
"lord, elder"
"from the Isle of Bute (Bòid)"
"dweller near the marsh"
"wanderer"
"son of Carr, from the marsh"
"rich, powerful ruler"
"elder, respected one"
"bright homestead, bright town"
"beauty, adornment, grace"
"modern invented name"
"strength of God, God is my light"
"beloved"
"Broken land, marshy area"
"hidden nook, secret alcove"
"ripe, free"
"descendant of the hound of valor"
"ocean, soaring sea"
"dark one"
Similar sound: These names share phonetic patterns with Maddix — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Welsh origins, giving them the same cultural heritage as Maddix.
Rhythm: Maddix is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.