Dominik sits next to 4 phonetic neighbors — Dominic, Dominique, and Damon are the closest matches by sound. Most share Dominik's Polish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"of the Lord's day (Sunday)"
"home ruler"
"sun"
"thatcher, roof builder"
"YHWH has been gracious"
"man, husband (older Germanic sense)"
"from Sebaste"
"bright-headed"
"earnestness, sincerity"
"emperor, ruler"
"power, strength, ruler"
"eagle"
"of the earth"
"prosperity protector"
"may God protect"
"wise as a wolf"
"treasurer, keeper of treasure"
"belonging to Mars, the war god"
"noble elder"
Similar sound: These names share phonetic patterns with Dominik — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Dominik.
Rhythm: Dominik is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.