Atticus sits next to 3 phonetic neighbors — Marcus, Cassius, and Caspian are the closest matches by sound. Most share Atticus's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"from Attica, man of Athens"
"divine"
"titan who bore the heavens"
"God will raise up"
"noble Roman citizen"
"man of laurels, from Laurentum"
"to prevail, to win"
"grey home"
"defender of the people"
"woodcutter, carpenter"
"my God is the Lord, from Elijah"
"supplanter's son (via James → Jacob)"
"winding valley"
"high-spirited person"
"magic dignity"
"bent nose"
"southern settlement, south farm"
"enthusiasm, ardent"
"warrior, brave one"
Similar sound: These names share phonetic patterns with Atticus — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin from Greek origins, giving them the same cultural heritage as Atticus.
Rhythm: Atticus is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.