Matthias sits next to 4 phonetic neighbors — Mathias, Matthew, and Mattias are the closest matches by sound. Most share Matthias's German-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"gift of Yahweh"
"always powerful"
"divine staff, royal pillar"
"substitute, replacement"
"bold counsel"
"son of Andrew (manly)"
"of the bean growers (Fabii clan)"
"lion"
"famous warrior"
"God is good; Yahweh is good"
"anointed one carrier"
"one who mills grain"
"of the Julian clan, youthful"
"rich spear, lucky warrior"
"greatest Aemilian (of the Aemilian family)"
"master of inspired frenzy"
"greatest of the Aemilians"
"messenger, herald"
"son of marsh-dwellers"
Similar sound: These names share phonetic patterns with Matthias — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Matthias.
Rhythm: Matthias is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.