Mattix sits next to 5 phonetic neighbors — Maddox, Mattias, and Matrix are the closest matches by sound. Most share Mattix's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"gift of God"
"one million million (10^12)"
"people's power"
"like a lion, of Leon"
"God is exalted, gift of God"
"the meadows, fertile plains"
"lord, respected elder (if from Sire)"
"initials name, no fixed meaning"
"darling, dear one"
"fortunate, good"
"born of fire"
"supplanter, one who follows"
"victory of the people"
"God is gracious"
"dark red, crimson"
"one who lives near a pool or stream"
"precious, greatly valued thing"
"growth, increase, abundance"
"darling, friend"
"rye clearing"
Similar sound: These names share phonetic patterns with Mattix — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew (via Matthew) origins, giving them the same cultural heritage as Mattix.
Rhythm: Mattix is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.