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"
"greatest, largest"
"God is with us"
"wealth, fortune, prosperity"
"always king"
"brave advisor"
"son of Jens (son of John)"
"the greatest"
"God is gracious"
"of the Fabian family"
"noble bright (adal + beraht)"
"always powerful"
"fallow land, uncultivated land"
"son of Karr"
"wave, abundant, learned"
"peaceful ruler"
"son of Jove, divine descent"
"favored by the gods"
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.