Miller sits next to 4 phonetic neighbors — Milo, Milner, and Miles are the closest matches by sound. Most share Miller's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"one who mills grain"
"possibly from a- (not) + treo (tremble)"
"priest"
"victory of the people (from Nicholas)"
"narrow channel's son"
"famous warrior"
"son of Benedict/Benjamin"
"Christ-follower"
"altar/hearth of God"
"victory of the people"
"crooked nose"
"crooked valley"
"son of Owen"
"best"
"sorrowful (folk etymology via French)"
"dear one of God"
"royal ruler"
"God is salvation, Yahweh saves"
"declared innocent, acquitted"
"little one"
"letter J, initial name"
Similar sound: These names share phonetic patterns with Miller — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English (mylenweard) origins, giving them the same cultural heritage as Miller.
Rhythm: Miller is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.